Marcu 26, 1914] 
NATURE 
103 
—Georges Dupont: The stereochemical isomers of 
some y-glycols.—Paul Brenans ; Jodine compounds ob- 
tained from orthonitroaniline and orthonitrosulphanilic 
acid.—Const. A. Ktenas: Metamorphic phenomena at 
the island of Sériphos.—C, Gaudefroy: The dehydra- 
tion figures of potassium  ferrocyanide.—Louis 
Matruchot ; Progressive cultural variations of Tricho- 
loma nudum.—J. M. Lahy: The objective signs. of 
fatigue in professions not requiring muscular effort. 
The variations in the blood pressure and _ reaction 
time were found to give useful indications of this class 
of fatigue——Louis Lapicque: The economy in food 
realisable by raising the external-temperature. A dis- 
cussion of a recent note on this subject by Miramond 
de: Laroquette.—E. Voisenet: New- researches on a 
ferment contained in waters, the dehydrating agent of 
glycerol—G. de Gironcourt: The milk ferments in 
the Touareg.—Paul Bertrand: Relations of the im- 
prints of Corynepteris with Zygopteris.—E. Bénévent : 
Glacial action.—Ph. Flajolet: Observations made at 
the Lyons Observatory during the hurricane of 
February 22, 1914.—E. A. Martel:The Beatus-Hohle 
(Switzerland) and underground water of limestones.— 
De Montessus de Ballore: Luminous phenomena 
accompanying the earthquake at Rauhe Alb, Novem- 
her 16, ‘Tort. 
March 16.—M. P. Appell in the _ chair.—Ch. 
Lallemand: The twenty-four hours dial. For tele- 
grams and railway time-tables numbering the hours 
from o to 24 has distinct advantages. In the author’s 
opinion there is no advantage, however, in dividing 
the clock dial into twenty-four hours instead of the 
usual twelve.—A. Haller and Jean Louvrier : Syntheses 
by means of sodium amide. Preparation of some of 
the higher homologues of mono- and di-methyl cam- 
phors, as well as the corresponding camphols. The 
sodium amide method has been applied to the prepara- 
tion of ethyl- and diethyl-camphor, methylethylcamphor, 
propyl- and dipropyl-camphor, benzyl- and dibenzyl- 
camphor and ethylbenzyleamphor. All these have been 
reduced to the corresponding camphols, the properties 
of which are described.—Paul Sabatier and M. Murat: 
The direct hydrogenation by catalysis of the diaryl 
ketones and the aryl alcohols. The preparation of 
polyaryl alcohols. Benzophenone is reduced by 
hydrogen in presence of nickel to diphenylmethane ; 
with a more active nickel the reduction can be carried 
to dicyclohexylmethane. The reaction, which is a 
general one, is shown to hold for the higher homo- 
logues of benzophenone.—Charles Richet: Hereditary 
tolerance of toxic substances in the lower organisms. 
The lactic acid ferment was grown in presence of toxic 
substances (potassium arseniate, phosphate, seleniate, 
nitrate), and after several successive cultures was found 
to acquire a resistance to the action of the toxic body 
present.—A. Laveran and G. Franchini: The infection 
of mice by means of the flagellae of the rat flea by 
the digestive tract.—C. Guichard: Asymptotic net- 
works and congruences.—J. Guillaume ;: Observation of 
the partial eclipse of the moon on March 11, 1914, 
made at the Lyons Observatory.—F. Courty : Observa- 
tion of the eclipse of the moon of March 12, 1914, at 
the Bordeaux-Floirac Observatory.—Henry Bourget: 
Observation on the same made at Marseilles.—W. 
Blaschke ; The evaluation of double integrals of convex 
functions.—R. Jentzsch: The extension of a theorem 
of Laguerre.—Henri Frossard: The whispering voice 
and in general the flow of a fluid under pressure in 
a capsulism going from zero to infinity.—Léon and 
Eugéne Bloch: The spark spectra of nickel and cobalt 
in the extreme ultra-violet. Measurements are given 
for wave-lengths between 2100 and 1850.—J. de 
Kowalski: The different spectra of mercury, cadmium, 
and zinc. The metallic vapours were examined at 
different pressures, governed by the temperature of 
NOMS317, VOL: 93 | 
) abscissae.—A. Colani : 
a piece of metal in a subsidiary quartz bulb. The 
discharge was produced without electrodes, by sur- 
rounding the quartz bulb containing the vapour with 
several turns of copper wire carrying a high-frequency 
current. The lines observed varied with the vapour 
pressure of the metal.—Jean Timmermans Pure pro- 
pane: the. weight of a normal litre. Two sets. of 
density measurements were made, the gas in the first 
set being prepared by Lebeau’s method from propyl 
iodide and sodium amide, and in the second set by the 
reduction of propionitrile by sodium. The final puri- 
fication in both cases was effected by fractional dis- 
tillation. The mean result (seventeen observations) 
Was 2:01955 grams per litre—J. Bancelin: The abso- 
lute measurement of adsorption coefficients. . The 
adsorption was studied on known areas of- glass 
plates, and results are given showing the quantities 
adsorbed in grams per sq. cm. at different concen- 
trations of the solution.—Eugeéne Louis Dupuy: The 
magnetic susceptibility of some feebly magnetic 
alloys. Alloys of silver and antimony, lead and tin, 
and zinc and aluminium were studied, and the results 
given graphically, the magnetic susceptibilities being 
taken as ordinates and percentage composition as 
Ferrous and chromous meta- 
phosphates.—Marcel Dubard: The relations of the 
principal genera of Mimusopez between themselves 
and with the Sideroxylez.—J. Beauverie: The chon- 
driome of the Basidiomycetes.—G. Kimpflin: The 
laws of physical growth during childhood and 
adolescence. A continuous study of 200 children from 
the age of eleven to sixteen years. Relations be- 
tween the height, weight, and thoracic perimeter.— 
L. and M. Lapicque and R. Legendre: Change in the 
excitability of nerves caused by an alteration in their 
myeline sheath. The action upon the nerve of the 
frog of chloroform, ether, cocaine, strychnine, sodium 
oxalate, solanine, and morphine is detailed.—A. 
Magnan: The characteristics of the marine birds.— 
Louis Léger: A parasite of the trout, belonging to 
genus Dermocystidium.—Edgard MHerouard: Pzdo- 
genesic pecilogony in Chrysaora isoceles.—Adrian 
Lucet: Researches on the evolution of Hypoderma 
bovis and the means of destroying it.—J. Deprat: The 
presence of the marine Rhetian with coal, on the 
western border of the delta of the Red River, Tonkin. 
—Paul Fallot: The stratigraphy of the Sierra of 
Majorca.—Ph. Flajolet: Perturbations of the mag- 
netic declination at the Lyons Observatory (Saint- 
Genis-Laval) during the fourth quarter of 1913. 
BOOKS RECEIVED. 
The Marine Biological Station at Port Erin (Isle of 
Man), being the Twenty-seventh Annual Report of the 
Liverpool Marine Biology Committee. Pp.  7o. 
(Liverpool: C. Tinling and Co., Ltd.) 
Was Wir Ernst Haeckel Verdanken.. Edited by H. 
Schmidt. Bandi. Pp. xv+432. Band ii. Pp. viii+ 
416. (Leipzig: Verlag Unesma G.M.B.H.) 2 vols., 
8 marks. 
- Union of South Africa. Annual Report of the De- 
partment of Agriculture for the Period 1912-13 (Agri- 
cultural Education). Pp. 184. (Cape Town: Cape 
Times eds) ers ‘ite 
Ricerche Sperimentali Sui Raggi Magnetici in 
Diversi Gas e Miscugli Gassosi. By Prof. A. Righi. 
Pp. 36. (Bologna: Gamberiori e Panmeggiani.) | 
Wild Flowers as They Grow. Photographed in 
Colour Direct from Nature. By H. E. Corke. With 
descriptive text by G. C. Nuttall. Sixth series. Pp. 
viii+200+plates. (London: Cassell and Co., Ltd.) 
5S.) Mek. : y 
Technical Mechanics: Statics and@¢Dynamics. By 
