ie 
ld 
Marcu 28, 1912] 
potash on the tertiary alcohols: a new method for 
the diagnosis of these alcohols.—A. Mailhe and M. 
Murat: The nitro derivatives of phenyl oxide. 
NATURE 
105 
‘from alcohols by the action of sulphuric acid is a 
catalytic effect, and is not due, as is commonly sup- 
| posed, to a direct withdrawal of water from the 
J. Virieux: Achromatium oxaliferum.—Victor Dupont | 
and Jean Gautrelet ; General anesthesia by the rectum, 
using titrated mixtures of air and chloroform or the 
vapours of ethyl chloride. Details of experiments on 
the rabbit.—Jacques Pellegrin; The dentition of 
Mobula olfersi—D. Keilin: The anatomy and 
development of Belgica antarctica. Worl: done on 
material collected by M. Gain in the course of the 
expedition of the Pourquoi-Pas ?—E. Daday de Dées: 
The polymorphism of the males in certain phyllopods. 
—A. Cligny: The marine migration of the common 
eel. In November, 1911, and January, 1912, about 
a dozen eels were caught in the English Channel 
about 20 miles from the coast of Cornwall. A de- 
tailed account of the condition of one of these, a | 
female, is given.—M. Flajolet: Contribution to the 
application of wireless telegraphy to the prediction of 
storms. A description of some arrangements for 
increasing the sensibility of the recording apparatus. 
With these modifications, the apparatus gives indica- 
tions of electrical disturbances when the storm is 
from ten to twenty-four hours distant.—A. Baldit : 
The electrical charges of rain at the Puy-en-Velay in 
IgII. 
March 18.—M. Lippmann in the _ chair.—J. 
Boussinesq: The explanation of the instantaneous 
action of gravity and molecular forces, without 
successive propagation, at all distances at which 
the forces are produced round the material points 
from which they emanate.—A. Haller: Phenyl-, 
p-tolyl-, and diphenyloxyhomocampholic acids and 
their transformation into benzylidene-p-tolylidene- and 
diphenylmethylene camphors.—Ch. Ed. Guillaume : 
The expansion of commercial nickel. Although the 
coefficient of expansion of nickel is greater than that 
of invar (nickel-steel), it has the advantage of with- 
standing corrosion after prolonged immersion in 
water. The coefficient of expansion of bars of com- 
mercial nickel has been studied over a period of 
twenty years, and a gradual diminution in the co- 
efficient has been noted.—M. Constantin was elected 
a member of the section of botany in the place of the 
late M. Bornet.—Emile Belot: The formation of rings 
in the Laplace nebulana—H. W. E. Jung: The in- 
variant of Zeuthen and Segre.—Jean Chazy: A differ- 
ential equation of which a coefficient is a divergent 
series.—Louis Roy : Waves of shock in the motion of 
flexible membranes.—Charles Reignier: The starting 
period in aéroplane motors. Unless the motor takes 
a certain minimum time to attain full power, there 
is a risk of breaking the propeller or transmission 
gear. The relation between this time and _ the 
strength of the moving parts is investigated in this 
paper.—Georges Meslin: The interference fringes 
obtained with the Fresnel triprism.—G. A. Hemsa- 
lech : The influence of capacity, of self-induction, and 
of the explosive distance on the velocity of luminous 
vapours in the electric spark. The velocity of the 
metallic vapour is not sensibly changed by varying 
the capacity; it varies inversely as the self-induction 
of the discharge circuit, and directly as the ex- 
plosive distance.—P. Mesernitsky : Contribution to the 
study of the decomposition of uric acid by the action 
of the radium emanation.—Camille Matignon: The 
equilibrium of the system cadmium _— sulphate, 
hydrogen chloride.—P. Mélikoff and M. Becaia: The 
estimation of phosphoric acid in presence of colloidal 
silicie acid.—G, Chavanne: The ethylene isomerism of 
acetylene bichloride.—J. B. Senderens: The catalytic 
dehydration of the fatty alcohols in the wet way by 
means of sulphuric acid. Experimental evidence in 
favour of the view that the formatien of e*hylenes 
NO. 2213, VOL. 89| 
| By G. F. Bosworth. 
alcohols by the acid.—H. Duval: Researches on the 
endoazoic compounds.—Mme. Paul Lemoine: The 
general characters of the Arctic and Antarctic genera 
of the calciferous algze—L. Cuénot and L. Mercier : 
Study of cancer in mice.—A. Trillat and M. 
Fouassier: The influence of the nature of the gases 
dissolved in water on the vitality of micro-organisms. 
The nature of the dissolved gases in water is an 
important factor in the multiplication and preserva- 
tion of pathogenic organisms. The results with the 
Eberth bacillus are especially emphasised.—F. de 
Montessus de Ballore: Luminous phenomena accom- 
panying great earthquakes. 
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