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JULY 8, 1909)
NATURE

59 Her according to jsitions of close upon 2000 lines, composing the three , not of the rincipal bands, have been determined. The wave-lengths

tion of the salt, nor to the speed of the ions, but might Groups of ratsa ere derived from the interference standards of Fabry and

be explained by the assumption of some association of ties of these cuisson, but have been corrected to Rowland's scale to

molecules and ions.-Seismic radiations, partij.: Dr.

C. G. Knott. Following up results regarding reflection acilitate comparison with solar spectra. (4) Twelve of the and refraction of seismic disturbances given twenty years

ries of lines which compose the green band have been ago (see also Phil. Mag., 1899), the author calculated the found that is aced, and it is shown that none of the formulæ which surface disturbances which accompany the reflection of expressed by ave been proposed is sufficiently general in its applica- the various types of elastic wave at the surface of an they perete on to represent all of these series within the limits of clastic solid. "When the incident wave is condensational

rror of measurement. For the longer series the closest there is always a reflected distortional wave as well as a a considerate pproximation is given by Halm's equation. (5) The reflected condensational wave, and a simple harmonic dis

jentification of magnesium hydride in the sun-spot turbance produces at the surface a simple harmonic disturbrption of elpectrum has been fully confirmed, and is clearly demon- ance along a line differing at most incidences by a few

trated by photographs submitted for reproduction. (6) It degrees from the direction of the incident disturbance. s shown that many of the bright interruptions the dark When, however, the incident wave is distortional there

ackground of the spot spectrum are not bright lines, but is, after a certain critical angle, no reflected condensational eaves: D. Thomas n the spectrum of magnesium hydride. (7) The presence nerely clear interspaces between lines or groups of lines wave. For incidences greater than this critical value the

original simple harmonic motion of the incident wave is the magnesium hydride fiutings, together with futings not, in general, accompanied by a simple harmonic motion developmentVilson, accords with the view that spots are regions of of titanium oxide and calcium hydride discovered at Mount of each particle of the .surface, but each point of the

surface is thrown into elliptic motion of all degrees of educed temperature, and that their darkness is at least ellipticity from circle to straight line. Details were worked

artly due to absorption. (8) The investigation of the out for certain assumed values of the elastic constants. come the lar: vossible presence of lines of magnesium hydride in the The results indicate how misleading in certain cases is the gong paraphra ordinary Solar spectrum is for several reasons inconclusive, phrase “ emergence angle," much, used by seismologists. sameles , or jut there is evidence that very few, if any, of the thousands

Paris. les of an oir : »f faint lines tabulated by Rowland are to be accounted for rupture at the

Academy of Sciences. June 28.-M. Émile Picard in OV

this substance. The discovery of remedy for The litera nalignant jaundice in the dog, and for redwater in cattle :

the chair.-Integral equations of the first species : Emile

Picard.--The longths, whics Prof. G. H. F. Nuttall and S. Hadwen. The comparative

gases of volcanic fumaroles : Armand

Gautier. The gas samples were collected under experifactic

, ac en vower of alcohol, ether, and chloroform, as measured by Cultures fra heir action upon isolated muscle : Dr. A. D. Waller.

mental conditions designed to exclude the possibility of

the admission of atmospheric oxygen, and to preserve gases EDINBURGH.

alterable by water, such as carbon oxysulphide. Gas ter. The selezia Royal Society, June 21. -1°r. Burseis, vice-presiden“, in the taken from fumaroles at Vesuvius near the top of the pipertes, dt. Fihair.-The pharmacological action of

protocatechyl- was found to consist of hydrochloric acid, carbon s conta.igt sropeine: Prof. C. R. Marshall. Like

other dioxide, hydrogen, oxygen, and nitrogen. No sulphur y cultures la ropeines, this substance paralyses, but only for a short compounds could be detected, and carbon monoxide, oxides er algas period, the so-called vagal endings of the heart; it also of nitrogen, hydrocarbons, and Auorides were absent.

us conjunt depresses the neuro-muscular junctions in voluntary muscle Gases collected from fumaroles on Vesuvius eighteen Đbserved. L. and the muscular tissue itself. Its most interesting action, months after an eruption showed hydrochloric acid to be d esparded - however, is upon the respiration. Medium doses, intra: absent, and 0.5 to 2:0 of carbon monoxide present. It along this z venously administered, rapidly paralyse the respiration. was noted that, although no halogen acids could be rded end. This effect is generally transitory, and is not concomitant detected, the gases leaving the fumaroles rapidly attacked remains of - with other effects produced by the compound. Tappeiner steel and copper.-Ordinary carbon: H. Le Chatelier Formed de and Pohl have observed similar transitory effects after and M. Wologdine. By modifying the graphitic oxide ed, producing - intravenous injection of other derivatives, and Pohl's ex- reaction, graphite has been proved to be present in E and an is planation, which ascribes the effect to paralysis of the carbon from acetylene and in other varieties of carbon he sporepór respiratory centres, was shown to be the true one for proto- produced at moderately low temperatures, hitherto assumed hen ruptur : catechyltropeine. The relation between chemical constitu- to be free from graphite. Carefully purified amorphous ve rise to u tion and pharmacological action as exemplified in the carbon from various sources has a density of about 1.8. ured erwe- tropeines was considered, and an attempt made to show -The existence of trachytes with quartz (bostonites) in

lamina - that definite action could not with certainty be attributed the Mont-Dore massif : A. Michel Levy and A. Lacroix. amber of cake to the two constituent groupings of the tropeines.—The - The polished stonework in the Haut-Oubanghi: A. Ded from the toot poison of New Zealand ; an investigation into its Lacroix. The

made of worked and ansion d: pharmacological action : Prof. C. R. Marshall. This polished quartz; the process of manufacture is described velops the poison, which includes three definite species of Coriaria, in detail, and shown to be strikingly analogous with -ouths ban has proved a serious hindrance to the rearing of stock in

similar work in Neolithic deposits.—The origin and evoluand its

New Zealand. The active principle, isolated by Easter- tion of fresh-water shrimps of the family of Atyidæ : gen: Dr.

field and Aston, is a glucoside named tutin. The effects E. L. Bouvier.-The hydration of potassium carbonate : Beilby

produced are chiefly stimulation of the medullary centres M. de Forcrand. A thermochemical paper.— The action Tento

and epileptiform convulsions, which are mainly of cortical of metallic oxides on methyl alcohol : Paul Sabatier i forms and pontine origin. Pontine convulsions

very

and A. Mailhe. Alumina, at temperatures about 300° C., d Mis susceptible to anæsthetics. A fall of temperature always furnishes large yield of methyl oxide; thoria and

occurs after the administration of tutin. The substance titanium dioxide hdd.

at 350° behave similarly ; oxides of also depresses the sentient centres, and in man causes loss

chromium and tungsten give a mixture of methyl oxide corer de

of memory. Coriamyrtin and picrotoxin have a similar and formaldehyde, the latter being partially split up into spots action, but are more powerful, and in some respects more

carbon monoxide and hydrogen. Other oxides give the een transient in action, than tutin.--Hydrolysis of salts in

latter reaction exclusively.-Observations of the comet and DT

amphoteric electrolytes : Miss H, H. Beveridge. The 1909a, made at the Observatory of Lyons with the bent rahering

two principal methods in general use for determining the equatorial of 32 aperture: J. Guillaume.—The degree of hydrolysis of salts-catalysis of methyl acetate variations of brightness of Encke's comet and the sunand electrical conductivity-give results in the case of spot period : J. Bosler. The graphical comparison of the salts of amphoteric electrolytes which are not at all con- variations in brightness of Encke's

and the in- cordant. The hydrolysis of anthranilic hydrochloride was number of sun-spots shows that the two phenomena are

therefore investigated by several independent methods. Of clearly related.-Comparison of the spectra of the centre 21 ! these, the solubility, distribution between two solvents, and the edge of the sun : H. Buisson and Ch. Fabrythe sono catalysis of diazo-acetic ester, and electromotive force all The physical and historical interpretation of some markne pointed to the catalysis values being correct, while values ings on the moon's surface: from the eleventh part of , 457: + obtained from depression of the freezing point and electrical the photographic atlas published by the Observatory of

conductivity differed widely from these. The divergence Paris : P. Puiseux.-An extension of the theory of con**** was due, not to any abnormality in the degree of ionisa- | tinued fractions : A. Chatalet.—The calculation of the.

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roots of numerical equations : R. de Montessus.- of Guyra. It is surrounded by low basalt hills, er:Remarks on a note by M. Petit on a new wave detector for a depression in these to the south-east. The lazar for wireless telegraphy and telephony: E. Tissot. It is which, before 1902, had held water so far back aj: suggested that the arrangement of a fine metallic point oldest settlers in the district could remember, is now resting on a crystal of natural pyrites is really one of There has been no diminution in the rainfall to account the thermoclectric detectors.--Comparison between the this. It is thought that the changing of the limited ca. a rays produced by different radio-active substances : Mlle.

arca from pastoral to agricultural country s Blanquies.--The temperature of the oxyhydrogen flame : account for the present dryness of the lagoon.FI Edmond Bauer. This was found to be 2240° C.—The observations seem to indicate that the depressions “ initial re-combination" of the ions produced in gases by

crater-lake.-Note on diurnal variations in the temperat: a particles : M. Moulin.-—The magnetic transformation of of camels : Dr. J. B. Cleland. During the examira. lead : M. Loutchinsky. The coefficient of magnetisation of a certain number out of 500 camels in the northis ten times greater in lead crystallised by fusion than in of Western Australia, a wide diurnal variation in lead hammered out or drawn into wire.—The practical temperatures, sometimes of 7° F., was met with. method for the simultaneous calculation of atomic weights : would seem to be due to the high temperature of G. D. Hinrichs.—The bromide of dimercurammonium, atmosphere during the day, coupled with the fact NHg Br : H. Gaudechon.-The formation of oxygen com- camels only visibly perspire at the back of the neck si pounds of nitrogen and their metallic combinations (iron a small area, and the coolness of the nights. The and lead) in the production of ozone for the sterilisation diurnal range suggests a resemblance cold-ba of water : Ed. Bonjean. The amount of oxides of animals.-Some rare Australian Gomphinæ (Neuropnitrogen produced in commercial forms of ozonisers is Odonata), with descriptions of species: R sufficient seriously to attack lead and iron pipes used in Tillyard. The present paper brings up to date our kn the construction. This has not been considered in the ledge of Australian Gomphinæ. Five new species design of sterilisation apparatus on the commercial scale. added to the list, and the male of Austrogomphus

- The separation of graphite in white cast iron heated | Martin, of which only the female was known, is descris under pressure : Gcorges Charpy. Carbon arising from --Studies in the life-histories of Australian Odonata, the decomposition of iron carbide produced at tempera- life-history of Petalura gigantea, Leach: R. J. Tillyar. tures between 700° C. and 1100° C., and under pressures. The species is one of the few remaining forms o rising to 15,000 atmospheres, separates in the form of very ancient family. graphite.-Contribution to the study of uranyl chloride : @chsner de Coninck.—A new alkaloid extracted from

CONTENTS.

PA the bark of Pseudocinchona africana : Ernest Fourneau. Ruwenzori and Central Africa. By Sir H. H. The crystallised alkaloid studied has the composition of Johnston, G.C.M.G., K.C.B. quebrachine (C,,H, N,0,), and resembles this alkaloid in The Planet Mars, 1890-1901,

By Dr. William J. s. many of its properties. They differ in rotatory power, Lockyer quebrachine being dextrorotatory and the new base lævo- The Geometry of Forces. By Sir Robert S. Ball, rotatory:--The formation of lactones from acid alcohols : F.R.S. E. E. Blaise and A. Kahler. An e-octolactone can be The Distribution of Gold Ores. 'By J. W. G. prepared from the acid C,H,.CH(OH).(CH,)..CO,H by Swine in America slow distillation in a vacuum, but the 6-lactone could not Our Book Shelf:be prepared from the next higher homologue in the same Beattie and Dickson : “A Text-book of General Patho. way. If the dehydration is attempted by heating with logy for the Use of Students and Practitioners" 50 per cent. sulphuric acid, a migration of the hydroxyl Scheiner : “Der Bau des Weltalls" ; Peter : “Die group takes place, a g-lactone being formed in both

Planeten" instances.-Soluble starch : Ch. Tanret.—The action of Formánek : “Untersuchung und Nachweis organischer hydrogen. peroxide upon crystallised oxyhemoglobin : 1. Farbstoffe auf spektroskopischem Wege Szreter.The cholalic acids : Maurice Piettre.- Re- Redgrove : 6. On the Calculation of Thermochemical generation in species of Syllis : Aug. Michel.—The

Constants."-A. F... mechanism of the immunity of snakes against the Hodgson : “An Angler's Season.”-: w.B.: salamandrine : Mme. Marie Phisalix.-Concerning a note Lotters to tbe Editor :of M. Devaux entitled “ The Relation between Sleep and A New Departure in Seismology.-Prof. John the Retention of Interstitial Water ": Raphael Dubois.

Milne, F.R.S.. The author points out that this note confirms his results Tables of Bessel and Neumann Functions. --Prof. on the phenomena accompanying sleep in hibernating M. J. M. Hill, F.R.S. animals.—The metamorphosis of the splanchnic muscles Baskets used in Repelling Demons. in the Muscideæ : Charles Pérez.—The ratio of the weight

Annandale of the liver to the weight of the body in birds : J. de La The Sinhalese People and their Ari. ' (Illustrated.) Riboisière.--The glacial origin of Loch Lomond and By C. G. S.. Loch Tay : Gabriel Eisenmenger.—The hydrology of the A Discussion of Australian Meteorology. Ey Bracas (Basse-Pyrénées) and of El-Torcal (Andalousie) : R. G. KL E. A. Martel. The earthquake at Corinth on May 30, Possibility of an Extra-Neptunian Planet 1909 : D. Eginitis.

The Sorby Research Fellowship
New South WALES.

Prof. T. W. Bridge, F.R.S. Linnean Society, May 26.--Mr. C. Hedley, president, in Notes the chair.-Metasomatic processes in a cassiterite vein Our Astronomical Column :from New England : L. A. Cotton. The vein examined Comet 1909a, Borrelly.Daniel lies some six miles south-west of Inverell. A transverse A New Form of Comparison Prism section, about 11 inches in width, was taken and cut into Halley's Comet .. six pieces, in planes parallel to the plane of the vein. The Polarisation of the Solar Corona Sections were then cut, and a series of four analyses made. The Solar Constant and the Apparent Temperature of Of the latter, three were of the vein, while the fourth

the Sun was of the country rock, an acid granite. Examination The National consumption of Water. ' By Maurice of the slides showed that the central part of the vein was

Fitzmaurice, C.M.G. highly siliceous. The remaining slides of the vein-material The War against Tuberculosis showed an abundance of a peculiar pale mica of a Vision in Relation to Heredity and Environment paragonite-sericite nature. This mica was found to replace Child Employment and Evening Continuation the quartz, felspar, and biotite of the acid granite. Schools Fluorite was also found as a secondary mineral, and it is Evolution in Applied Chemistry. By Prof. Otto N. possible that a small amount of topaz was present.-- Note

Witt on the Guyra Lagoon, N.S.W.: L. A. Cotton. The University and Educational intelligence Guyra Lagoon lies immediately to the west of the town Societies and Academies

Dr. N.

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