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follicles of negroes (Bull. et Mém. Soc. d'Anth., Paris, 1904, UNIVERSITY AND EDUCATIONAL p. 124), and have obtained interesting results. The follicle

INTELLIGENCE. forms at least half a spiral and is not flattened; the CAMBRIDGE.-The following is the speech delivered by the distribution of hair on the scalp is uniform, but all the Public Orator, Dr. Sandys, on Thursday last, in presenting hairs of the same spiral tuft have the intradermic portion Dr. E. B. Tylor, F.R.S., professor of anthropology in the of their curves orientated in nearly the same direction, and University of Oxford, for the degree of Doctor in Science it is apparently this uniformity of the neighbouring follicles honoris causa :that determines the formation of spiral tufts; a semi- Adest vir et propter aetatis dignitatem et propter studia in circular oblique crest ridge of fibrous tissue constricts the rerum originibus primis exquirendis praeclare posita inter upper portion of the hair bulb, and thus causes the flatten- primos merito numerandus, quem iamdudum admirati, nunc ing of the hair and its spiral twist.

demum honore diu debito decoramus. Abhinc annos quinque Mr. E. H. C. Walsh, in an illustrated note on stone et quadraginta consuetudines Mexicanas antiquas diligenter implements found in the Darjeeling district (Journ. As. exploravit. Deinde de prisco hominum cultu, opere in Soc. Bengal, Ixxiii. p. 21), states that all the implements maximo et doctrinae variae plenissimo, plus quam semel he found were polished celts," with the exception of a disputavit. Illo vero in opere, animarum praesertim in dumb-bell shaped hammer head. The general belief of the regno perlustrando aliorum antecursor constitutus, successpeople is that these axe-heads are thunderbolts which have oribus omnibus facem splendidam praetulit. Denique de fallen from heaven; they are chiefly found with the medicine anthropologia universa egregie disseruit, hominum ipsorum men, who use them as charms in their incantations to studium hominibus imprimis proprium esse iure optimo drive out or cure disease, and also on account of their arbitratus. Nemo fortasse magis merito liberalitatem illam reputed medicinal properties when mixed with water ; on Terentianam prae se ferre potest : several specimens the scraping or rubbing on stones to “homo sum, humani nil a me alienum puto." obtain medicine is very noticeable. Numerous references to other papers dealing with the subject are given. On

The proposals forwarded by the Studies Syndicate p. 27 of the same Journal P. O. Bodding describes some

have been rejected by the Senate by, roughly speakshoulder-headed and other forms of stone implements in

ing, three to two. The poll taken was the largest on the Santal Pargans; it is not yet clear who were the

record, and on the Grace affecting Greek the “ non-placets makers of these distinctive implements possibly they were

were 1559 and the placets 1052. The result is exMon-Kmer and Munda peoples. The Journal also contains

tremely disappointing to all those who wish to some interesting folklore.

Cambridge take its rank as a leading university in the Some time ago M. Verneau directed attention to some

Empire. There is, however, a strong consensus of opinion

that the matter should not be allowed to rest where it is. skulls from Palæolithic interments at Mentone with a remarkable negroid aspect, and M. Hervé has noted two

Perhaps a consultation between the two opposing bodies somewhat similar Neolithic skulls from Brittany. Prof.

might lead to some plan acceptable to the more moderate

members of both parties. Manouvrier points out in the Bull. et Mém. Soc. d'Anth., Paris (1904, p. 119), that all these

The Vice-Chancellor announces that he has appointed " characters

negroid " occur in European or other non-African skulls, but they

Colonel Sir Frank Younghusband, K.C.I.E., to the office

of reader on Sir Thomas Rede's foundation for the present are very rarely found in conjunction. All the skulls of

year. this type are female; in following out this hint Dr.

Mr. E. H. Hankin, Fellow of St. John's College, and Manouvrier discusses the “negroid " characters, and comes

analyst and bacteriologist to the North-West Provinces and to the conclusion that in a dolichocephalic population in Oudh, has been approved by the general board of studies which the prognathism of the men is so marked, a corre

for the degree of Doctor in Science. sponding degree of prognathism in the women, combined with other characters that are characteristic of female

MR. H. O. ARNOLD-FORSTER, M.P., Secretary of State skulls, would give a negroid appearance without any need

for War, has consented to give away the prizes to the to conclude that there was a negro element in the popula- students at the Woolwich Polytechnic on April 1. tion. The same author describes (p. 67) a remarkable trepanned Neolithic skull, and (p. 101) some senile Neolithic

The Huxley lecture of the University of Birmingham will skulls.

be delivered by Prof. E. B. Poulton, F.R.S., in the large As the result of a long and careful comparative study

lecture theatre of the Midland Institute, on Thursday, of the skeletal variations of the foot in primates and in March 23. the races of man, Th. Volkov (Bull. et Mém. Soc. d'Anth., In the Engineering and Mining Journal, Mr. G. S. • Paris, 1903, 1904) arrives at the following conclusions :- Raymer gives an illustrated description of the Simpkins The skeleton of the foot of the prosimians bears many laboratory at Harvard. It is designed for the study of traces of the primitive type of foot of the ancient mammals, continuous ore-dressing operations on a considerable scale, and presents many intermediate forms between this type the plant consisting of a 3-stamp battery and additional and that of the foot of monkeys. The skeleton of the foot apparatus of the most recent type. of the lower primates appears to be the result of adaptation The formal opening of the new building of the École polyto arboreal life of ancestors whose foot resembled that of

technique of Montreal, in affiliation with Laval University, existing rodents. The skeleton of the foot of anthropoids took place on January 28. This school was founded in 1874 represents the extreme of this adaptation, but at the same

to give French-Canadian youths an opportunity of obtaining time (among the hylobates and partly in the gorilla) the a training in practical science. Its sphere has been limited, beginning of adaptation to standing and to bipedal pro- but with the new building and improved equipment better gression. The skeleton of the foot in the lower races of results are anticipated. man presents as a whole, and for each bone in particular, evident and numerous traces of adaptations characteristic

MR. CHARLES H. Hackley, of Muskegon, Mich., has made, of climbers antecedent to the assumption of the erect atti

we learn from Science, a bequest of 50,000l. to the Hackley tude and bipedal progression. The ethnical characters

Manual Training School of Muskegon, which, added to range from the oblique and flat foot to the straight and

72,000l. already given by Mr. Hackley, makes the school's

total endowment 122,00ol. arched foot. Consequently the arch of the foot represents

Mount Holyoke College will the most essential character from an anthropological point receive, we learn from the same source, 34,4001. as the of view. The index of curvature, that is to say, the re

residuary legatee of the late Mr. Edmund K. Turner. lation between the height and length of the foot, or In an article entitled “ The Lesson of Coopers Hill,'' the especially the tarso-metatarsian length, should be con- Indian Daily Telegraph of February i institutes a comsidered as a very important anthropometric datum. The parison between the methods of government in the cases skeleton of the foot of the new-born infant reproduces of Coopers Hill and the City and Guilds of London technical primitive and transitory forms in the development of the colleges. The success of the latter is traced to adaptation human foot in general, and thus its study possesses a very in them of the methods followed in the great German polygreat anthropological importance.

technics which is shown by their senates or college boards

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responsible for their educational systems. The article pro- tained by the agricultural associations, at the expense of ceeds to direct attention to the Thomason Civil Engineering the general public. The president held that the colleges College at Rurki in connection with a proposal at a recent need the grants for the promotion of the education of meeting of the Allahabad University to abolish the faculty farmers in the science and practice of agriculture, without of engineering, and favours the introduction in the college diverting them to other purposes. It is for them to instruct at Rurki of the method of government which has assured the farmers in agricultural chemistry. the success of the colleges of the City and Guilds.

The Berlin correspondent of the Times states that in the course of a debate on the estimates for the Ministry of Education in the Prussian Chamber on March 2, an official of that Ministry, Geheimrath Reinhardt, gave some interest

SOCIETIES AND ACADEMIES. ing information with regard to the success of the so-called

LONDON. “ reform schools,” in which the study of the classics is begun at the age of twelve, and Greek not until the age of Royal Society, February 2.-" The Theoryiof Photographic fourteen. One great advantage of this system is that the Processes : on the Chemical Dynamics of Development." decision to assign a pupil to the modern (Realschule) or to By S. E. Sheppard and C. E. K. Mees. the classical school (Gymnasium) can be postponed to a

If a photographic plate be exposed to light and stage when his abilities and tastes can be better estimated. developed, the transparency to light of the silver de Geheimrath Reinhardt stated that the system of this“ reform posited is related to the mass thereof by the equation school " had hitherto been adopted at three classical Gym- | D=-logoT, where D (termed the density) is proportional nasia, and the result was that of 123 pupils in the highest to the mass of silver per unit area. This relation has been form who presented themselves for the leaving examination confirmed with great care for densities varying from os 10 only four failed to pass, and of these four three succeeded 3.5, and for the plates and developer used a density of 100 six months later. Experience had shown that as a result corresponded to 0.01031 gram of silver per 100 sq. em. of beginning Latin and Greek at a later age than was This quantity is termed P, the “ photometric constant of customary, the interest of the pupils in their work was ren- the deposit. dered keener, and their diligence was certainly in no wise A study of the relation of the density to the time of inferior to that of the pupils of the ordinary Gymnasia. development resulted as follows:The fourth annual report of the executive committee of

(a) l'he silver deposited increases rapidly at first, then more the Carnegie Trust states that sums amounting to 38,1141. slowly, and finally tends to a limit. have been claimed and handed over to the four Scottish (b) This limit depends only on the exposure. universities during the year. The grants for library purposes

(c) The velocity depends on the concentration of the and for provisional assistance in teaching, amounting in all

reducer. to 6400l., have been fully paid. The grants for buildings

(d) A soluble bromide reduces the velocity, but the ** slogand perinanent equipment available for 1904, including a ing off " with time is not so rapid. balance of 12,6351. unexpended in 1903, amount to 33,0351. A theoretical investigation of development based on the Of these, the sum of 20,1461. has been claimed. Claims for theory of reaction-velocities in heterogeneous systems led grants towards teaching endowments amount for the year under certain conditions to the equation 2D dt=*(D. -D). to 11,5681. These include contributions to the foundation Do is the limiting density, D that at the timeOn of two chairs--that of history in the University of Aberdeen, integration this leads to the expression and that of geology in the University of Glasgow. The scheme of endowment of post-graduate study and research

It log D.D. - D=* ; has now entered upon its second year. The total expenditure (DC-D) is then the reacting surface. for 1903-4 under the scheme was 33861. The estimated K was experimentally shown to be constant. outlay for the current academic year is 51771. Applications Further, as is theoretically A/8 a, where A is a for fellowships, scholarships, and grants for 1905–6 must diffusion-constant, the diffusion path, and a the concenbe lodged on or before May I with the secretary to the tration of the reducer, the velocity should be proportional trust, from whom application forms and regulations can to this, which was experimentally found. be obtained. In the research laboratory of the Royal College The addition of alkaline bromides gradually alters thr

of Physicians, the purchase of which was announced in the course of the reaction, introducing an induction period, but • previous annual report, the superintendent reports that the for the "maximum" velocity xx log Br=a constant.

past year has been one of steady and satisfactory work in The value of a depends greatly on the physical condition all departments. Thirty-five workers have held places in of the plate, diminishing with keeping, probably from the laboratory, and have been engaged in forty-seven in- lowered diffusivity. vestigations.

An important deduction from the development formula is The twenty-seventh annual general meeting of the In

that the ratio of the densities due to two exposures is corr stitute of Chemistry was held on March 1. In the

stant and independent of the time of development, which was of an address Mr. David Howard, the president, referred to

confirmed. the steady growth of the institute, saying that he thought

For a series of increasing exposures for a certain range there was still a wide field for those possessing the highest Hurter and Driffield showed that D=y(log E, i), where is chemical knowledge and skill, and that those who had to development-constant, call in the aid of such knowledge and skill were becoming Hence as ay is proportional to D, and as more and more alive to the importance of employing only

1/1 log D.D. - D=", the properly trained and competent. He emphasised the importance of requiring all candidates to produce evidence therefore 1/1 log Yo0/900 -=k, an expression which may of a high standard of general education. The professional be used to compare the velocities of different developers. For chemist should be a professional man as well as a chemist, ferrous oxalate, citrate and fluoride the following table was and must, therefore, possess that general culture which is obtained :essential if he is to deal with his work in a professional

Developer

Relative efficiency spirit. Referring to the position of the institute in con

Ferrous citrate

1.00 nection with the Sale of Food and Drugs Acts, he mentioned Ferrous fluoride that 94 per cent. of the public analytical appointments were Ferrous oxalate

487 held by fellows of the institute. The president alluded to the action of the Board of Agriculture in encouraging pro- Further communications are to be made on the influence vincial technical and agricultural colleges to undertake pro- of temperature, of soluble bromides, on the reversibility of fessional chemical work gratuitously, or at purely nominal the reaction, on the microscopy of, and on the exposure and fees. In the endeavour to help dairy farmers, the board has development, nature and destruction of the " latrnt image induced the colleges, which are maintained by grants for The object of the investigation is to make the study of technical education, for the benefit of a particular class, to development quantitative and to bring it in line with gerjeral compete with professional chemists, particularly those re- physicochemical theory.

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ourse

Chemical Society, February 15.-Prof. W. A. Tilden, moving system may be deduced by the usual methods. In F.R.S., president, in the chair:- Nitrogen halogen deriva- the actual apparatus a tuning-fork arrangement with an tives of the aliphatic diamines: F. D. Chattaway. The accuracy of about 1/200 of a second is used as the chronocornpounds ethylenetetrachlorodiamine, ethylenetetrabromo-graph, and the results obtained from the pendulum are diamine, and other similar bodies derived from diamines or accurate to about three per cent. The principle has also been their diacyl derivatives were described.-The nitration of applied to torsion pendulums.–String models of optical substituted azophenols : J. T. Hewitt and V. H. Mitchell. systems: J. Schofield. In these models the lenses and The authors have systematically studied the action of dilute prisms are made of celluloid, so that the paths of rays nitric acid and of a mixture of concentrated nitric and through them can be shown. sulphuric acids on the three nitrobenzeneazophenols.—The estimation of saccharin : C. Proctor. The process described

Paris. by E. Emmet Reid for the estimation of saccharin has been Acadenıy of Sciences, February 27.-M. Troost in the rested and found to be convenient and trustworthy. The paper chair.-The precautions necessary in the mode of execution also described a simple volumetric process by means of of certain researches requiring high precision : M. Loewy. which the combined percentage of o-benzoicsulphinide and A lengthened study as to the cause of some systematic errors p-sulphamidobenzoic acid in commercial saccharin can be in the circle of a meridian instrument, wrongly attributed determined.—The analysis of samples of milk referred to to flexure of the circles, showed that these effects were due the Government Laboratory in connection with the Sale of to bad definition of the images of the lines, and could be Food and Drugs Acts : T. E. Thorpe. This paper contained remedied by increasing the definition of the reading microthe results of an inquiry into the changes which occur in the scopes and improving the lighting. In the determination ** souring " of milk, and especially as to the effects of these of the constant of aberration, and of refraction, by means on the usual analytical constants of milk.–The condensation of a double mirror cut out of one block of glass, a deformaof anilinodiacetic esters in presence of sodium ethoxide : tion of the image was observed which rendered accurate A. T. de Mouilpied.--The basic properties of oxygen at readings difficult. The form to be given to the two relow temperatures; additive compounds of the halogens with flecting surfaces to get regular stellar images has been organic substances containing oxygen : D. Mcintosh. A worked out.-On the observation of the partial eclipse of the continuation of previous work on the combination of organic moon of February 19: M. Puiseux. "The twelve photocompounds containing oxygen with the halogen hydrides to graphs taken are discussed in detail, and in some respects form definite compounds.--Organic derivatives of silicon : F. are not in agreement with descriptions given before 1866. S. Kipping. The preparation and reactions of a number of Recent observations render improbable any new changes in these compounds were described. For the purpose of the moon's crust.-On an application of the iris diaphragm systematic nomenclature these compounds are regarded as in astronomy : M. Salet. An iris diaphragm, introduced derivatives of silicane, SiH, or of silicol, SiH,.OH.-Photo- into the plane of the micrometer wires of an eyepiece, has graphic radiation of some mercury compounds : R. de J. F. the effect of suppressing diffused light, and thus facilitating Struthers and J. E. Marsh. The mercury compound observations on faint objects.–Families of Lamy with plane HgC,,,2(NH. NH.C.H.) was found to act on a photo-orthogonal trajectories : G. Carrus.-On algebraic surfaces : graphic plate through paper and aluminium foil, and slightly Federigo Enriques.--On functions with an infinity of varithrough sheet zinc. Phenylhydrazine and a number of ables : Maurice Fréchet.-On some theorems of Riemann : mercury salts were also found to exert a similar action. P. Fatou.—The theory of the limiting trajectory of an Royal Microscopical Society, February 15.—Dr. Dukin

aëroplane : Marcel Brillouin.-On the intensity of photofield H. Scott, F.R.S., president, in the chair. - The Finlay- graphic impressions produced by feeble illuminations : C. son "comparascope" : Mr. Finlayson. The arrangement negative the contrasts are exaggerated in the faintly illu

It is shown experimentally that in a photographic exhibited provides a means of examining two slides simu!

minated regions and attenuated in the more strongly lighted taneously.-An optical bench for microscope illumination, microphotography, micro-projection, lantern projection, &c.,

parts. On a positive, on the contrary, the differences of and a large photomicrographic and enlarging camera, both lighting, are faithfully reproduced.-On the kathode rays

emitted by the anode : E. Rogovsky.—The surface tension bench and camera being on rigid iron tables provided with

of a dielectric in the electric field : Ch. Fortin. In an castors and fixing pedestals : C. Beck.-Practical micrometallography: J. E. Stead, F.R.S. Mr. Stead described electric field of 20,000 volts per centimetre, normal to the

surface, the relative variation of the surface tension of the the machinery by means of which metals may be cut and polished rapidly, and explained the various operations of petroleum, if it exists, is less than 1/450th. If the variation

of the surface tension with the strength of the field be cutting, grinding, and polishing. Many specimens shown by means of the epidiascope exhibited clearly the details regarded as negligible, the arrangement of apparatus of the surface, and especially the coloration. The beautiful described serves as a new method of measuring the specific

inductive capacity of the liquid.-On the spectra of the colours produced by the heating process, by which some

fluorides of the alkaline earths in the electric arc : Ch. portions became oxidized more quickly than others, were very striking, especially in the case of a specimen of Fabry.-On the ionisation due to the radium emanation :

William Duane.-On the purification of gadolina and on a polished section of a meteorite, which almost equalled in brilliancy and colour that well-known microscopic object the

the atomic weight of gadolinium : G. Urbain. The method

of purification adopted was the fractional crystallisation of wing of Morpho menelaus.

the double nitrate of gadolinium and nickel from nitric acid Physical Society, February 24.—Prof. J. H. Poynting, of density 1.3. The purity of the product was established F.R.S., president, in the chair.-On the curvature method by the constancy of the ratio between the crystallised sulphate of teaching geometrical optics : Dr. C. V. Drysdale. The and the oxide, and the mean atomic weight is given as paper has been undertaken with the two-fold object of giving 157.23 (0=16). The spark spectrum of this product is being a systematic exposition of the method of teaching elementary specially studied by Sir William Crookes, and the arc optics which the author has found most suitable, and of spectrum by Dr. Eberhard, who will publish their results giving an introduction to a subsequent paper on the treat- shortly.-On some osmionitrites and

nitrite of ment of aberrations by curvature methods.--Dr. Meisling's osmium : L. Wintrebert.-A special constituent obtained colour-patch apparatus : R. J. Sowter. The apparatus is in the tempering of an aluminium bronze : Pierre Breuil.simple in its principle and construction, and is specially On B-decahydronaphthol and the octahydride of naphthalene : adapted for testing colour-blindness.-A method of illus- Henri Leroux. B-naphthol, reduced by means of the trating the laws of the simple pendulum : J. Schofield. Sabatier and Senderens reaction, gives rise to several subI pendulum is fitted at its lower end with a narrow hori- stances, from which the decahydride was separated in the zontal framework carrying vertical transverse wires. During pure state. That it is an alcohol was clearly shown by the the oscillations of the pendulum these wires are caused to preparation of the acetate and the phenylurethane, and cut a jet of mercury, and time signals are sent to the re- also by its dehydration to naphthalene octahydride by potassLording mechanism of a chronograph. The distances ium bisulphate.-On the glycol of anethol : E. Varenne between the wires are known, and together with the time and L. Godefroy.--The characters of the polygastric measures they yield a displacement-time curve of the motion. muscles : J. Chaine.-On the salivary, cephalic and metaFrom this the kinematical curves and equations of the thoracic glands of some Hemiptera: L. Bordas.—The

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phagocytic resorption of the reproductive elements in the

WEDNESDAY, MARCH 15. seminal vesicles of Lumbricus herculeus : Louis Brasil.

CHEMICAL SOCIETY, at 5.30.-The Velocity of Oxime Formation in Certain

Ketones: A. W. Stewart.-Catechin and Acacatechin ; Supplementary On the practical importance of the determination of the Note: A. G. Perkin.-The Action of Ethyl Dibromopropanetetracart arterial pressure to avoid accidents in anæsthesia : L. oxylate on the Disodium Compound of Ethyl Propanetetracarboxylase : Hallion. Remarks on a recent note of M. Tissot, and

a Correction : W. H. Perkin, jun.-On Glutaconic Acid and the Coe

version of Glutaric Acid into Trimethylenedicarboxylic Acid : G. Tane. directing attention to a paper published by the author and

sall. - The Ultra-violet Absorption Spectra of Certain Enol-keto TautoM. Duplay in 1900 on the same subject. The influence of merides: E. C. C. Baly and C. H. Desch.-Esterification Constants of the radium emanation on the toxic power of snake poison : Substituted Acrylic Acids : J. J. Sudborough_and D. J. Roberts C. Phisalix. Cobra poison, which is distinguished by re

a-Chlorocinnamic Acids: J. J. Sudborough and T. C James.-Di-orbo.

substituted Benzoic Acids. Part VI. Conversion of Methyl into .tby! sistance to destruction by heat, is readily destroyed by the Esters : J. J. Sudborough and T. H. Davies. --Simple Method for the radium radiations. On the other hand, the poisons from Estimation of Acetyl Groups : J. J. Sudborough and W. Thomas the salamander and toad are unaffected by the emanation.- Gynocardin, a New Cyanogenetic Glucoside: F. B. Power and F. H. Lees.

ENTOMOLOGICAL SOCIETY, at 8. The application of the vowel siren to the study of deafness : ROYAL MICROSCOPICAL Society, at 8.-A Review of Work done by M. Marage. Each kind of deafness gives a special curve Metallographers : J. E. Stead, F.R.S. with this instrument, the form of which is characteristic ROYAL METEOROLOGICAL Society, at 7.30.- On the Growth of lastra

mental Meteorology: R. Bentley. of the seat of the lesion.—The glandular atrophic action of

MINERALOGICAL SOCIETY, at 8.-On Some New Mineral Localities in the X-rays : Foveau de Courmelles. The ovaries, the Cornwall and Devon : A E. I. M. Russell.-On a Crystal of Pherakite breasts, and the lymphatic ganglions can be atrophied under from East Africa : L. J. Spencer.(1) Notes on Various Minerals from the action of the X-rays. On the application of thermometry

the Binnenthal, Switzerland. (2) A New Oxychloride of Copper from

Sierra Gorda, Chili: G. T. Prior and G. F. Herbert Smith, to water supply : E. A. Martel.—The coal formation in the

THURSDAY, MARCH 16. Balkans : L. De Launay.-On the uniformity of composi- Royal Society, at 4:30.-Probabie Papers: A Preliminary Note upon tion of the Amana meteorites : G. D. Hinrichs.

the Question of the Nutrition of the Early Embryo : E. Emrys Roberts -On Reciprocal Innervation of Antagonistic Muscles. Seventh N ste Prof. C. S. Sherrington, F.R.S.-On the Absence or Marked Dimination

of Free Hydrochloric Acid in the Gastric Contents, in Malignant Disease DIARY OF SOCIETIES.

of Organs other than the Stomach : Prof. B Moore, with W. Alexander,

R. E. Kelly, and H. E. Roaf.-On the Heterogenetic Origin of certais THURSDAY, MARCH 9.

Ciliated Infusoria from the Eggs of a Rotiser : Dr. H. C. Bastian,

F.R.S. ROYAL SOCIETY, at 4.30.- The Rate of Transmission of the Guatemala

ROYAL INSTITUTION, at 5.—Recent Astronomical Progress : Prof. H. H. Earthquake of April 19, 1902 : R. D. Oldham.-Ionic Sizes in Relation to the Conductivity of Electrolytes : W. R. Bousfield - Explosions of

Turner, F.R.S. Mixtures of Coal Gas and Air in a Closed Vessel : L. Bairstow and

SOCIETY OF Arts, at 4:30.-Manipur and its Tribes: T. C. Hodson. A. D. Alexander.-On some Continuous Observations on the Rate of

LINNEAN SOCIETY, at 8.-Contributions to the Flora of Liberia : Dr. Dissipation of Electric Charges in the Open Air : C. Coleridge Farr.

Otto Stapf.-Exhibitions : Penguins and other Birds from the Falkland ROYAL INSTITUTION, at 5.- Recent Astronomical Progress : Prof. H. H.

Islands, and Scratched Rocks from a Rockhopper's Rookery: R Val

lentin. Turner, F.R.S. INSTITUTION OF ELECTRICAL ENGINEERS, at 8.-Report on Experiments

CONTENTS. carried out at the National Physical Laboratory: On the Effect of Heat

PAGE on the Electrical and Mechanical Properties of Dielectrics, and on the The Origin of Man. By A. K.

433 Temperature Distribution in the Interior of Field Coils : Dr. R. T. Glazebrook, F.R.S.-On Temperature Curves and the Rating of

Chemistry for Youths : Mrs. Marcer Redeviva. By Electrical Machinery : R. Goldschmidt.

W. R.

435 MATHEMATICAL Society, at 5:30.-On the Weddle Quartic Surface: Mr. Floral Morphology H. Bateman. On the Projective Relations between Two Planes : Prof.

Scientific Aspects of Lawn Tennis M. J. M. Hill, Dr. L. N. G. Filon and Mr. H. W. Chapman.--On the

436 Theory of Perpetuants : Mr. P. W. Wood.

Our Book Shelf :

Allen: “New Streets: Laying Out and Making FRIDAY, MARCH 10. Roval INSTITUTION, at 9.—The Structure of the Atom: Prof. J. J.

Up."-C. V. B. Thomson, F.R.S.

Ball: "A Popular Guide to the Heavens”

437 ROYAL ASTRONOMICAL SOCIETY, at 5.-Theory of the Motion of the Moon. Hellmann : "Denkmäler mittelalterlicher Meteor Part IV.: Prof. E. W. Brown - The Great Nebula of y Eridani : Dr. Max Wolf.-Observations of Uranus and Saturn: C. J. Merfield.-Ob.

ologie" servations of Uranus at Windsor, New South Wales : John Tebbutt.

Finn: "The Birds of Calcutta. "_'r. i.
The Spectroheliograph of the Solar Physics Observatory: W. J. S. Smith: “ Toning Bromide Prints"
Lockyer.-Nebular Photography; a Suggestion: W. S. Franks. The
Late Leonids of November, 1904: Rev. S. J. Johnson. - Magnetic Dis.

Letters to the Editor :turbances and their Association with Sun-spots; a Reply : E. W.

Charge on the a Particles of Polonium and Radium. -Maunder. -Promised Papers : On the Large Sun-spot of 1905, January Prof. J. J. Thomson, F.R.S.; Frederick Soddy 43$ 29-February 11, and the Contemporaneous Magnetic Disturbances, ob. The Pressure of Radiation.-Oliver Heaviside, served at the Royal Observatory, Greenwich (communicated by the Astronomer.Royal). ---Notes on the Siderostat and Calostat: H. C.

F.R.S. Plummer.

Secondary Rönigen Radiation. - Dr. Charles G. MALACOLOGICAL Society, at 8.-On a Dibranchiate Cephalopod from the

Barkla Eocene of Arabia : G. C. Crick.-Note on the Horizon and Locality of Dates of Publication of Scientific Books.-B. the Type Specimen of Pleuronautilus pulcher : G. C. Crick.- New Marine Mollusca from the Collection of the late Admiral Keppel: G. B.

Hobson Sowerby.-On the Occurrence of Internal Septa in Glyptostoma new.

Some Scientific Centres. VII.–The Physiological berryanum : G. K. Gude. --Note on a Dart found in the Body Cavity of Research Laboratory of the University of

Helix aspersa: R. G. Barnes.
INSTITUTION OF Civil Engineers, at 8.—The Purification of Sewage :

London, (Illustrated.)

441 F. G. Helsby.-The Purification of Sewage by Hydrolysis and Oxida

The Monte Rosa and col d'Olen International tion : F. 0. Kirby.

Laboratories. By Sir M. Foster, K.C.B., F.R.S. . 443 PHYSICAL Society, at 8.-On the Stresses in the Earth's Crust before and Neolithic Deposits in the North-east of Ireland. after the Sinking of a Bore-hole : Dr. C. Chree, F.R.S.-On the Lateral Vibration of Bars of Uniform and Varying Sectional Area : J. Morrow.-

(Illustrated.). On Direct Reading Resistance. Thermometers, with an Appendix on

Notes

445 Composite Thermocouples : A. Campbell.

Our Astronomical Column:-
SATURDAY, MARCH II.

Jupiter's Seventh Satellite
ROYAL INSTITUTION, at 3.-Electrical Properties of Radio-active Sub. Longitude Observations of Points on Mars
stances : Prof. J. J. Thomson, F.R.S.

Observations of Comets.
MONDAY, MARCH 13:

The Government Observatory at Victoria
SOCIETY OF ARTS, at 8. – Telephony: H. L. Webb.
ROYAL GEOGRAPHICAL SOCIETY, at 8.30.-The Anglo-German Boundary

Observations of Saturn's Satellites
Expedition in Nigeria : Colonel Louis Jackson, R.E.

Bright Meteors
TUESDAY, MARCH 14.

The Magnetic Survey of the United States. (Illus.
ROVAL INSTITUTION, at 5.--Some Recent Biometric Studies : Prof. K. trated.)
Pearson, F.R.S.

The Nest of the Fighting Fish. (Illustrated.) INSTITUTION OF Civil ENGINEERS, at 8.-Shipbuilding for the Navy: Some Recent Work of the U.S. Geological Survey

Lord Brassey, K.C.B.
AERONAUTICAL SOCIETY, at 8.-Some Recent Experiments in Aéro.

in the Western States. (Illustrated.) By G. W. L 490 dynamics : P. Y. Alexander. - The Shape of Navigable Balloons : Eric Anthropological Notes Stuart Bruce. -Automatic Stability : E. C. Hawkins. --Note on an University and Educational intelligence

Aluininium Kite : Alan H. Burgoyne.
ANTHROPOLOGICAL INSTITUTE, at 8.15.- Manners and Customs of the

Societies and Academics

454 Melanesians ; Lantern Illustrations : Rev. W. H. Edgell.

Diary of Societies

438

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