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the excrement of various birds showed that entire and thousand times smaller than the other. The apparatus apparently uninjured seeds are voided constantly. Red- used by Ebert only measures the first of these. -Contriwings, fieldfares, and other thrushes were compelled during bution to the study of ionisation' in fames : Pierre the frost to subsist largely upon hedgerow fruit, and entire Massoulier:--On the specific coefficients of magnetisation seeds of the wild rose (Rosa) and hawthorn (Cratægus), of liquids : Georges Meslin.—The action of very low among others, might have been collected from their temperatures on the phosphorescence of certain sulphides : droppings by thousands. From the excrement of smaller F. P. Le Roux. Remarks on a paper of MM. A. and L. birds the author obtained many undigested seeds of the Lumière dealing with the same subject. --On a new mineral bramble (Rubus).—The Foraminifera from the coast of the containing radium: J. Danne. Some plumbiferous island of Delos, part ii. : H. Sidebottom. Particular minerals, notably a pyromorphite, found in the neighbourattention was directed to those species that are new to the hood of Issy-l'Évêque, have been found to contain radium, Mediterranean. The dimorphic structure of many of the and it is a noteworthy fact that none of these minerals Foraminifera was also pointed out.

contain uranium. The amount of radium is variable, a January 10.-Prof. W. Boyd Dawkins, F.R.S., in ton of the mineral furnishing quantities of radium bromide the chair.-On the supposed antagonism of Mendelian to of the order of a centigram.—The dissociation of strychnine biometric theory: A. D. Darbishire. The author, after salts as measured by the rotatory power. The rotatory referring to the conflict of the Mendelians and bio- power in homologous series. The influence of the double metricians, explained the methods of investigation of the linkage : J. Minguin. The deviations were measured in two schools. The biometricians apply statistical methods the first place when the strychnine and acid were present and deal with masses of individuals, and therefore with in molecular quantities, and then in presence of an excess average characters; the Mendelians devote their attention of acid. The differences observed point to a dissociation to the study of the individual components of the mass, and taking place.-On cæsium methylamide : E. Rengade. endeavour by means of experiments to ascertain the nature Cæsium dissolves in anhydrous liquid methylamine, formand mode of modification of the characters of the units. ing at first a metal methylammonium ; this soon evolves Mr. Darbishire sought to show that the two views are hydrogen and the methylamide is quantitatively formed. not irreconcilable, but that the real truth was to be The amide detonates on heating, giving rise to cæsium arrived at from a survey of both.—The cause of the period cyanide and hydrogen. Water, allowed to act slowly, proof chemical induction : C. H. Burgess and D. L. duces cæsium hydroxide and methylamine.-The action of Chapman.

phosphorus pentachloride upon some tertiary cyclic amines. Paris.

Syntheses of colouring matters and formation of phosAcademy of Sciences, January 23.-M. Troost in the phorus: P. Lemouit.—The products of oxidation of chair. -New researches on the secular alterations of hydro- hydroanthrone: Marcel Godchot.-Thymomenthol and its

anthracene octahydride: dihydro-oxanthranol and hexacarbon of organic origin : M. Berthelot. Details are given of the chemical examination of a fatty substance

derivatives : Léon Brunel. This is obtained from thymol found in an Egyptian vase of about 1600 B.C.—Some by the Sabatier and Senderens reaction ; its physical and metals found in archæological excavations in Egypt : M.

chemical properties are given and the preparation of several Berthelot. Analyses of two specimens of bronze dating derivatives of benzodihydrofurfurane : A. Guyot and J.

derivatives described.—Contribution to the study of some from about the second dynasty.--On the increase of volume of molten cast iron, saturated with carbon in the electric

Catel.-On the agricultural value of humic materials : J. furnace, at the moment of solidification : Henri Moissan.

Dumont.--On the elliptical character of the new Borrelly Iron which is free, or nearly free, from carbon, in passing

comet (e 1904): G. Fayet. It is shown that no parabola from the liquid to the solid state, follows the ordinary

can satisfactorily represent all the observations, an elliptical law, its density increasing. On the contrary, when

orbit with a period of about eight years better representing saturated with carbon at the temperature of the electric

the facts.-An electrical pendulum with free escapement : furnace, it increases in volume when solidifying.–Study the small expenditure of electrical energy required to work

Ch. Féry. The arrangement described is remarkable for of lunar photographs. Considerations on the course of

it, less than 0.5 watt per annum. The diurnal variation solidification in the interior of a planet : MM. Lewy and Puiseux. As the result of an examination of photographs of a clock beating hall seconds fitted with the apparatus of the moon's crust, the author has been led to support the

described is less than 0.3 second.-On the nitrates of geological view of the constitution of the earth, that of a potassium and ammonia and on the law of Bravais : thin crust with a liquid core, as against the rigid solid

Frédéric Wallerant.—The coal basin of French Lorraine : Cheory of the mathematicians.—Note on the three volumes

Fraņcis Laur.On the diatom-bearing level of the ravine of the Annales de l'Observatoire de Nice : M. Bassot.

0. Egravats, near Mont Dore, Puy-de-Dôme : M. Lauby. On a recent ascent of Vesuvius: J. Janssen. Numerous

-On the biology and anatomy of the suckers of Osyris specimens of gases from the fumerolles and of lava and

alba : A. Fraysse.—On the biology of the Cestodæ : L. scoria were collected, and photographs taken of the absorp

James and H. Mandoul.-The action of magnesium and tion spectra of the vapours issuing from the cone during

of magnesia on micro-organisms : F. Dienert. an eruption. The description of a detailed examination of these is reserved for a future communication.-The

New South Wales calculation of ordinary and suspension bridges : M. Con

Royal Society, November 2, 1904.-Mr. C. O. Burge, sidère.-Observations of the Borrelly cometo (1904 e) made president, in the chair.--Pot experiments to determine the by F. Courty with the large equatorial at the Observatory

limits of endurance of different farm crops for certain inof Bordeaux : G. Rayet. -On families of surfaces with jurious substances, part iii., barley and rye : R. Helms plane orthogonal trajectories : S. Carrus.-Remarks on

and Prof. F. B. Guthrie. The authors describe experithe preceding communication : Gaston Darboux. On the ments with barley and rye in continuation of those on wheat approximation of functions by polynomials considered in

and maize (Proc. Roy. Soc. New South Wales, xxxvi. p. 191, relation with the theory of partial differential equations :

and xxxvii. p. 165) to determine the tolerance of these plants application to the problem of the initial state in mathe

to certain ingredients commonly present in the soils and marical physics : A. Buhl.-On a hyperelliptic surface : E. water used for irrigating in certain parts of the State, Traynard. On the integrals of total differentials belong namely, sodium chloride and sodium carbonate; also the ing to an irregular surface : G. Castelnuovo.-On linear effect produced upon their growth by the presence of small differential equations of the second order containing one quantities of plant poisons occasionally met with in parameter : M. Tzitzoica.--On a theorem of M. Borel : fertilisers, such as ammonium sulphocyanide, sodium F. Riess. On the deviation of falling bodies towards the chlorate, and arsenious acid.—The classification and south and on the curvature of lines of force: Maurice systematic nomenclature of igneous rocks : H. Stanley Fouché. On the magnetic field to which a body in motion Jevons. The author concludes that the most convenient in an electric field is submitted : H. Pellat.-On the ions general classification for the present time would be one of the atmosphere : P. Langevin. The experiments of the constructed as follows :-(1) Based on alkali-lime-content of author lead to the conclusion that there are only two kinds principal and minor mineral constituents. Produces two of ions present in the air, one having a mobility several series : alkaline and calcic. (2) Based on similarity of

314

313

a

principal mineral constituents. Produces seven sections,

WEDNESDAY, FEBRUARY 8. e.g. granitic, gabbroic, theralitic, &c. (3) Based on com- Society of Arts, at 8.-Time Development in Photography, and Modera munity of origin from similar parent magmas.

The latter

Mechanical Methods of carrying it out: R. Child Bayley. are defined by the presence of certain index minerals in

THURSDAY, FEBRUARY 9. the consolidated rocks (e.g. a granite, a granite-aplite, and

Royal Society, at 4-30.- Probable Papers : (1) On the Conversion of

Electric Oscillations into Continuous Currents by means of a Vacuus a rhyolite, &c., may all be derived from one magma; other

Valve : (2) On a Kummeter for the Measurement of the Length of long granites, rhyolites, &c., will be derived from similar Electric Waves, and also small Inductances and Capacities : Prof. J. A magmas). Produces twelve orders, e.g. granates, essexates,

Fleming, F.R.S.-Report on an Area of local Magnetic Disturbasce it &c. (4) Based on habit of mass. Produces seven families

East Loch Roag, Lewes, Hebrides : Captain A. M. Field, RN

Phosphorescence caused by the Beta and Gamma Rays of Radtum: in each order, e.g. granophites, dioromicrites, gabbro- G. T. Beilby.-(1) The Spectrum of Scandium and its Relation to lavites (basalts), &c. (5) Based on nature of minor mineral Celestial Spectra ; (2) Note on the Spectrum of K Centauri; (3) On the constituents. Produces a number of genera in each family,

Stellar Line near X 4686 : Sir Norman Lockyer, K.C.B., F.R.S., and

F. E. Baxandall.-On Europium and its Ultra-Violet Spectrum : & e.g. muscbigranophite, anaugi-hyper-peridotite (harz

William Crookes, F.R.S. burgite). (6) Based on texture, but to be applied only in Royal INSTITUTION, at 5.-Forestry in the British Empire: Prof W families where there is much variety of texture. Produces Schlich, F.R.S. subgenera, e.g. spheri-mono-rhyolite, graphi-bi-rhyolite,

INSTITUTION OF ELECTRICAL ENGINEERS, at 8.- Fuel Economy in Steam

Power Plants: W. H. Booth and J. B. C. Kershaw. (Conclusios di &c. The system of nomenclature described is an elabor- discussion.) The Value of Overhead Mains for Electric Distributive in ation of that already proposed by the author in a pre- the United Kingdom : G. L. Addenbrooke. liminary paper in the Geological Magazine (1901).

MATHEMATICAL Society, at 5.30.-General Theory of Transfinite Non

bers and Order-types : Dr. E. W. Hobson.-On the Reducibility of BENGAL.

Covariants of Binary Quantics of Infinite Order. Part ii : Mr P. W Asiatic Society of Bengal, January 4.-llierarchy of the

Wood.

FRIDAY, FEBRUARY 10. Dalai Lama (1406–1726): Rai Sarat Chandra Das. The

ROYAL INSTITUTION, at 9.-The Art of the Ionian Greeks: Dr. Ceci author gives a history of the origin and growth of power Smith. of the Dalai Lama.–On the prevalence of fevers in the ROYAL ASTRONOMICAL SOCIETY, at 5.-Anniversary Meeting. Dinajpur district : Dr. L. Rogers. This paper deals

MALACOLOGICAL SOCIETY.-Annual General Meeting. Address by the

President, Mr. E. R. Sykes, on Variation (including Teratology) with the results of a special inquiry into the causes of

Recent Mollusca. the very high mortality of above forty per thousand in INSTITUTION OF Civil ENGINEERS, at 8.---The Reconstruction of tbt the Dinajpur district. It is shown that the higher death Santa Lucia River Bridge, Uruguay: P. J. Risdon, rates in certain places are due mainly to malaria, the increased prevalence of which is closely related to a high

CONTENTS.

PAGE ground water level du to unalterable physical conditions of the district. In the second part of the paper the The Quintessence of Haeckelismus

313 varieties of fever met with and distribution of the A Useful Book for Fruit Growers. By R. H. P. anopheles which can carry the infection are dealt with, A Traveller's Companion. By G. A. J. C. and the impracticability of mosquito destruction as The Teaching of Science. By A. T. S.

316 preventive measure in the district as a whole is pointed Our Book Shelf :out. The wider distribution of quinine in each village

Sutro:

“ The Basic Law of Vocal Utterance"; through the agency of the primary schoolmasters so as “Duality of Voice and Speech. An Outline of to reach the children, who mainly die of the disease, is Original Research ”; “Duality of Thought and recommended as the only practicable method of lessening Language. An Outline of Original Research" 31* the death rates from malaria among the people of Lower Bolton: "A Select Bibliography of Chemistry, 1492Bengal.

1902."-J. B. C.

317

Guiton : " Hints on Collecting and Preserving Plants 317 DIARY OF SOCIETIES.

Butt : “ Practical Retouching

3* Wagner: "Stories from Natural History"

317 THURSDAY, FEBRUARY 2.

Letters to the Editor :Royal Society, at 4.30.-On the Compressibility of Gases between

One Atmospbere and Half an Atmosphere of Pressure: Lord Ray. Compulsory Greek at Cambridge.-A. B. Basset, leigh, O.M., F.RS.-On the • Blaze Currents" of the Gall Bladder

F.R.S. of the Frog: Mrs. A. M. Waller.The Theory of Photographic Processes : On the Chemical Dynamics of Development: S. E. Sheppard

Can Birds Smell ?--Dr. Alex, Hill.

318 and C. E. K. Mees.-On the Relation between Variations of Atmospheric

The Origin of Radium.-W. C. D. Whetham, Pressure in North-East Africa, and the Nile Flood : Capt. H. G. Lyons.

F.R.S.

319 - Note on the Determination of the Volume Elasticity of Elastic Solids Fact in Sociology.-H. G. Wells

319 Dr. Ç. Chree. F.R.S.--Theory of the Reflection of Light near the Polarising Angle : Prof. R. C. Maclaurin.

The Fertilisation of Jasminum nudiflorum.-Prof. Royal INSTITUTION, at 5.--Forestry in the British Empire: Prof.

John G. McKendrick, F.R.S.

319 W. Schlich

The Moon and the Barometer.- (With Diagram.) CIVIL AND MECHANICAL ENGINEERS' SOCIETY, at 8.-The Mechanics of

Alex. B. MacDowall
Flour Milling : A. R. Tattersall.
LINNEAN SOCIETY, at 8.-Descriptions of New Chinese Plants (with lantern

Reversal in Influence Machines.-Charles E. slides): W. J. Tutcher.-European Cirolaninæ (Isopoda): Dr. H. J.

Benham Hansen.

Dates of Publication of Scientific Books.-R. P.
RÖNTGEN SOCIETY, at 8 15.-Some Points in the Construction of a High
Frequency Machine: Dr. Clarence A. Wright.

Paraiypye .
CHEMICAL SOCIETY, at 8.-Studies in the Camphane Series. Part xvi. Super-cooled Rain Drops. — Cecil Carus. Wilson

Camphorylcarbimide and Isomeric Camphorylcarbamides: M. O. Forster Para Rubber. (Illustrated.) By C. Simmonds
and H. E. Fierz.

Prehistoric England. (Illustrated.)
FRIDAY, FEBRUARY 3.
Royal INSTITUTION, at 9.- Blood Pressure in Man: Prof. T. Clifford

Meeting of the British Association in South Africa 313 Allbutt, F.R.S.

The Royal Commission on Coal Supplies .
GEOLOGISTS' AssOCIATION, at 7.30.--Address on Modern Methods in the Notes
Study of Fossils : the President, Dr. A. Smith Woodward, F.R.S.

Our Astronomical Column :-
MONDAY, FEBRUARY 6.
SOCIETY OF CHEMICAL INDUSTRY, at 8.- The Theory of Dyeing. Part ii.

Astionomical Occurrences in February
Pseudo-solution and Desolution : W. P. Dreaper.-The Fading of Inks Jupiter's Sixth Satellite
and Piginents : J. W. Lovibond.

Ephemeris for Comet 1904 e
SOCIETY OF ARTS, at 8.-Fountain Pens: James P. Maginnis.

Solar Eclipse Problems
TUESDAY, FEBRUARY 7.
Royal INSTITUTION, at 5.- The Structure and Life of Animals: Prof.

The Conditions in the Solar Atmosphere during L. C. Miall, F.R.S.

1900-1 ZOOLOGICAL Society, at 8. 20,-On Abnormal Ranid Larvæ from North- Triangulation of the Pleiades Stars

eastern India: Nelson Annandale. -On a Second Collection of Fishes made by S. L. Hinde in the Kenya Destrict, East Africa: G. A. Boulen

A Bright Meteor ger, F.R.S.-On some Points in the Anatomy of Diademodon : Dr. R.

The General Motion of Clouds
Broom. - Notes on the Mammals of Southern Cameroons and the Benito : American Hydroids.
George L. Bates.

University and Educational Intelligence
INSTITUTION OF CIVIL ENGINEERS, at 8.-Discussion : Floating Docks.
L. E. Clark. -- Papers : Alfreton Second Tunnel : E. F. C. Trench.- The

Societies and Academies
Reconstruction of Moncreitle Tunnel : Dugald McLellan.

Diary of Societies

318

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25 Specimens, 5/6; so do., 10/6; 100 do., 21/- ; 200 do., 42/

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Adapted for the Board of Education Examinations in or preserved by the best methods :

Geology, Physiography, and Mineralogy. Sycon; Clava, Obelia, Sertularia ; Actinia, Tealia, Caryopbylila, Alcy. 4 large stock of Minerals, Rocks, Fossils and Microscopic Objects for tam; Hormipbora (preserved); Leptoplana; Lineus, Ampbiporus,

selection. Specimens sent on approval. Sereis, Aphrodite Arenicola, Lanice, Terebella ; Lepas, Baladas, Gammarus, Ligia Mysis, Nebalia, Carcinus ; Patella, Buccinum, Eledone,

Cabinets, Geologists' Hammers, Chisels, Card Trays, Glass-capped Pedens Bugula, Crisia, Pedicellina, Holothuria, Asterias, Echinus.

Boxes, Models of Crystals, &c., &C.
Ascidia, Salpa (preserved), Scyllium, Raia, &c., &c.

NEW CATALOGUE POST FREE
For prices and more detailed lists apply to
Biological Laboratory, Plymouth.

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