3a 
NATURE 
[JuLy 23, 1914 
ture with the Féry pyrometer is extended to cases in 
which the image of the opening in the hot.body is 
smaller than the blackened disc fixed to the thermo- 
electric couple. Readings are taken of the deviations 
with and without the interposition of absorptive plates 
of mica, glass, or celluloid.—MM. Massol and Faucon : 
The ultra-violet spectra of aqueous solutions of nitric 
acid, metallic nitrates, and particularly of copper 
nitrate.—P. Chevenard: The expansion of ferro-nickels 
over a large range of temperature. Measurements 
were made of the expansion between —195° C. and 
750° C., for a series of alloys containing increasing 
proportions of nickel. The results are given in the 
form of diagrams.—B. Bogitch: The ternary alloy of 
zine, silver, and lead.—F. Taboury : Glucinum sulphate 
and its hydrates.—]. Clarens : The chlorometric method 
of Penot.—Marcel Guichard: A new method 
of determination of the atomic weight of 
iodine. The method is based on the use of 
purified iodine pentoxide, and its decomposition 
into iodine and oxygen by a high temperature. These 
elements are weighed separately. The general mean 
of the experiments was, for O=16, I= 126: -92, identical 
with the value currently accepted.—L, Tschugaeff: A 
new method of preparation of the complex compounds 
of bivalent platinum. 
Bauer: The addition of hydrogen to aliphatic com- 
pounds with ethylene linkages in presence of nickel 
under moderate pressure. The reactions were carried 
out at the ordinary temperature under hydrogen pres- 
sures of fifteen atmospheres or less. Descriptions of 
the reduction of J-octene, cinnamic acid, sodium cinna- 
mate, methyl cinnamate, piperonylacrylic acid, 
eugenol, sapol, and isoeugenol are given.—Maurice 
Lugeon: The autochone strata below the Morcles 
layer.—Emile Haug : New observations on the tectonic 
of the valley of Saint Pons, near Gémenos (Bouches- 
du- Rhéne).—P . Idrac: The ‘irregularities of the wind. 
—Julien Loisel : The nomographic representation of 
the reduction of the barometer to  sea-level.—O. 
Lignier: New contributions to the knowledge of the 
flower of the Fumarieze and the Crucifereze.—Edgar 
Zaepiiel: The distribution of the stomata in the 
plantules of some graminaceous plants.—E. Chuard 
and R. Mellet: Nicotine in the by-products of the 
culture of tobacco. The waste products of tobacco 
culture contain sufficient nicotine to be of commercial 
value in the preparation of insecticides.—J. Kunckel 
d’Herculais: Correlation between the mortality of 
Ailanthus glandulosa and the disappearance of Samia 
cynthia.—Em. Bourquelot and Al. Ludwig: The bio- 
chemical synthesis of the B-monoglucosides of meta- 
and para-xylene glycols. ; 
BOOKS REC EIVED. 
Monographien aus dem Gesamtgebiet der Physiologie 
der Pflanzen und der Tiere. Band i. Die Wasser- 
stoffionen-Konzentration.. By Prof. Dr. L. Michaelis. 
Pp. xiv+210. (Berlin: J. Springer.) 8 marks. 
Journal: of: Genetics. ‘Vol. iv. No, 1. June.’ Pp: 
107. (Cambridge University Press.) tos. net. 
The Biochemical Journal. Vol. viii. No. 3. June. 
Pp. 217-280. (Cambridge University Press.) 7s. 
net. 
Grundztige der Mengenlehre. By Prof. F. Hans- 
dorff. Pp. viiit+476. (Leipzig: Veit and Co.) 18 
marks. 
Catalogue of the Ungulate Mammals in the British 
Museum (Natural History). Vol. iii. Artiodactyla, 
Families Bovide, Subfamilies A=pycerotine to Trage- 
laphinz (Pala, Saiga, Gazelles, Onyx Group, Bush- 
bucks, Kudus, Elands, etc.) Antilocapridee (Prong- 
buck) and Giraffide (Giraffes and Okapi). By R. 
Lydekker. Pp. xv+283. (London: British Museum 
NOs"23345 “VOLS 92] 
(Natural History), and Longmans, Green and Co.) 
4S. +Gd., 
Quarterly Journal of the Royal Meteorological 
Society. ~ Vol. xl. No. a7. july.” Bp. 185-256" 
(London: E. Stanford, Ltd.) 5s. 
Botanische Jahrbucher ftir Systematik Pflanzen- 
geschichte und Pflanzengeographie. Edited by A. 
Engler | Band’ li. ~ goatee ya lett. sip se 225 oe 
(Leipzig and Berlin: W. Engelmann.) 18. marks. | 
Gegenbaurs Morphologisches Jahrbuch. Edited by 
Prof.c¢G; «-Rugeée.- Band odix? “Eleftisis *Bpremze: 
(Leipzig and Berlin: W. Engelmann.) 13 marks. 
Zeitschrift fiir wissenschaftliche Zoologie. Edited 
by Prof. E. Ehlers.. Band.cix. Heft 3. Pp. 349- 
530. , 43) marks. . Band cix.. (Heft 4. Pp. gg1 ea0- 
It marks. -Band cx.:, Heft, 1. _Pp.-149. 05) mags. 
Band cx. Heft 2. Pp. 150-301. 10 marks. (Leip- 
zig and Berlin: W. Engelmann.) 
Woburn Experimental Fruit Farm. Fourteenth 
Report of the Woburn Experimental Fruit Farm. Pp. 
151. (London: Amalgamated Press.) 2s. od. 
Department of Commerce.’ U.S. Coast and Geo- 
detic Survey. Hypsometry. Fourth General Adjust- 
ment of the Precise Level Net in the United States 
and the Resulting Standard Elevations. Special Pub- 
lication No. 18. By E. Bowie and. H. G. Avers. 
Pp. 328. (Washington : Government Printing Office.) 
CONTENTS. PAGE 
South African Diamonds . : «go dale “sean eae 
The Popularisation of Eugenics . . GEG 
A fences Colloquium on Mathematics. | By 
GB. : lepteets) 
eee Museums and Systematic Biology. By 
WLC (sid er EMM P esc Ta ee le ta 528 
Our Bookshelf Anon See 
Letters to the Editor :— 
Man’s Chin: a Dynamical Basis for Physical and 
Psycho-physiological Utilities. —D. M. Shaw . . 531 
Meteoric Streaks and Trains. —W. F. Denning . . 531 
Climatic Change.—Chas. E. P. Brooks .... . 532 
The Plumage Prohibition: Bill, 2.4 ayascnae 532) 
Space and Time ; oe hg 
The Havre Meeting of the French Association . 533. 
Oscillations of French Glaciers. By T.G.B. .. 534 
A Nature-Reserve in Spitsbergen. ee Prof. Gren- 
willervAr |. Cole . 6 brad's ; 8 ee! 
Dr. Adolf Lieben. By J. BAG. 534 
The Rev. Osmond Fisher. ae Dr. Charles Davison 535 
INNotess: ((///ustrated.)) «\\c1b) Werle eee een 536 
Our Astronomical Column :— 
Comet 1913/ (Delavan) sires ia eee 541 
Observations of Halley’s Come soit ake 541 
Reports of Indian Observatories. 541 
Recent Physical Investigations in the North At- 
lantics Ocean! ~ By) VV. Sie emt _. See a 
Ornithological Notes. By R. Beers ae ae 543 
Terrestrial Magnetism. See By “Dra. 
Chree; FE R=S. Sie 5 oy anes 544 
Timber for Railway Sleepers. Byv.o Ri2 Bane ae 
Official Guides for Geological Travellers. . . . 545 
Plant-Autographs and their Revelations. (/¢us- 
trated.) By Prof, J.C. Bose. . . thy ba eee 
University and Educational Intelligence . 550° 
Societies;and Academies) 27. «8. en 551 
Books Received . 552 
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