March 



1913] 



NATURE 



103 



bation stage of typhoid lever ur infected in the course 

 of immunisation. From experience gained in the 

 typhoid epidemics cited it would appear that with this 

 vaccine there is no negative phase, and there is no 

 danger in vaccinating during epidemics. — MM. 

 Desgrez and Dorleans : The influence of the amino 

 group on the arterial pressure. A lowering of the 

 blood pressure is produced by minimal doses of certain 

 amino compounds, but an increase in the amount 

 injected produces ultimately an increase in the arterial 

 pressure. — J. Houdas : The presence of choline or allied 

 bases in the saliva of the horse. — Em. Bourquelot and 

 M. Bridel : The synthesis of the glucosides of alcohols 

 with the aid of emulsin. 0-Phenylethylglucoside and 

 /3-cinnamyfglucoside.— Ph. Negris : The age of the 

 cristallophyllian series of the Cyclades and the date of 

 the foldings which have affected it.— F. Dienert : Study 

 of the temperatures of subterranean water for public 

 supply. — V. Cremieu : Seismographs giving directly the 

 three components of an earthquake and slow varia- 

 tions from the vertical. 



March 17. — M. P. Appell in the chair. — E. H. 

 Amagat : Saturation curves and the law of correspond- 

 ing states. The author concludes that the law of 

 corresponding states is more rigorous than is usually 

 admitted, and gives reasons for supposing that devia- 

 tions from the law are probably due to experimental 

 error . — A. Miintz and E. Laine : The materials trans- 

 ported b'- the watercourses of the Alps and Pyrenees. 

 The utilisation of mountain streams either for power 

 or irrigation purposes requires an approximate know- 

 ledge of the amount of solid material brought down, 

 as this material would tend to fill up more or less 

 rapidly any storage reservoirs which might be con- 

 structed. A preliminary study has been made on 

 eighteen rivers, and it has been found that the amounts 

 of solid material brought down by alpine streams are 

 so great that the construction of storage reservoirs 

 will require very careful choice ; the streams from 

 the Pyrenees are much less troublesome in this 

 respect. — M. Gouy : The theory of the gaseous photo- 

 sphere. — D. Eginitis : The opacity of the sky and 

 weakening of the solar radiation observed during the 

 year 1912. The heliograph at Athens shows a pro- 

 gressive weakening in the solar radiation commencing 

 April 7, 1912. — M. Luizet and J. Guillaume : Observa- 

 tion of the occultation of the Pleiades by the moon 

 made on March 13, 1913, at the Observatory of Lyons. 

 — Leon Antonne : Hypohermitian matrices. — Ch. 

 Muntz : The solution of secular equations and integral 

 equations. — Georges Remoundos : Families of algebroid 

 functions. — Farid Boulad Bey : The disjunction of the 

 variables in equations representable by nomograms. — 

 Th. De Donder : Hilbert's theorem of independence. — 

 Carlo Bourlet : Apparatus for measuring the vibrations 

 of solid bodies in motion. A description of an instru- 

 ment for measuring the vibration of the wing of an 

 aeroplane, based on the use of two manometric cap- 

 sules. — Emile Jouguet : The propagation of deflagra- 

 tions in gaseous mixtures. — Edouard Guillaume : The 

 extension of the mechanical equations of Appell to the 

 physics of continuous media. Application to the 

 theory of electrons. — Kr. Birkeland : Hertzian oscilla- 

 tions produced by intermittent discharges starting 

 from isolated spots of a kathode in a Crookes's tube. 

 — Henri Benard : The prismatic cleavage due to cellu- 

 lar vortices (starch, basalts, &c.).— Jean Bielecki and 

 Victor Henri : The quantitative study of the absorp- 

 tion of the ultra-violet rays by acetone. In alcoholic 

 solution and in the liquid state acetone possesses a 

 single band in the ultra-violet ; the absorption curve 

 can be exactly represented by the formula of Ketteler, 

 Helmholtz, Reiff, and Drud'e.— Mile. E. Feytis : The 

 magnetic properties of some solid hydrates of 



NO. 2265, VOL. 91] 



copper and chromium.— Daniel Berthelot and Henry 

 tiaudechon : The decomposition ul gaseous compounds 

 by light. Hydrochloric acid is dissociated by the 

 extreme ultra-violet, a<o-2m- Hydrobromic acid is 

 more readily decomposed, and, in presence of mer- 

 cury, the decomposition after eight hours is complete. 

 Water vapour is decomposed by rays A<o-2M to the 

 extent of one-thousandth. Hydrogen sulphide and 

 selenide are readily split up under the same conditions. 



Mme. N. Demassieux : Study of the equilibrium 



between lead chloride and ammonium chloride in 

 aqueous solution. — Rene Dubrisay : A new method of 

 physico-chemical volumetric analysis. — A. Wahl and P. 

 Bagard ; Syntheses in the indigo series.— A. 

 Seyewetz : The action of hydrochloric acid upon 

 quinone sulphonic acid.— G. Petit and R. Ancelin : The 

 influence of radio-activity upon germination. The 

 experiments prove the stimulating influence of weak 

 radio-activities on the plant cell.— L. Moreau and E. 

 Vinet : The comparative effects of arsenic and lead 

 in treatment of vines for the larvae of Cochylis. Lead 

 arsenate proved to be the most efficacious form of 

 applying arsenic for the destruction of the larvae of 



Cochylis. D. Keilin : An intracellular fibrillary 



formation in the tunic of the salivary gland in the 

 larva of Syrphinas.— Raphael Dubois : The treatment 

 of tuberculosis by marine micro-organisms. Cultures 

 of a Micrococcus obtained from the pearl_ sac of 

 Pinna nobilis or P. squammata were used to inoculate 

 tuberculous guinea-pigs; eleven out of twelve sur- 

 vived. Henri Stassano : The mode of action of the 



anti-coagulating substance of the plasma of pro- 

 peptone. Mile. C. Robert : The antitoxin behaviour 



of calcium in the case of some nutritive salts in the 

 culture of the pea and lupin in liquid media.— W. 

 Kopaczewski : The dialysis of maltase.— M. Deprat : 

 The Triassic strata in the region of the middle Black 

 River (Tonkin). 



Calcutta. 



Asiatic Society of Bengal, February 5.— Dr. Malcolm 



Burr : Indian Dermaptera collected by Dr. A. D. 



Imms. A number of new localities for known species 



of earwigs are put on record and one new species is 



described. Dr. W. A. K. Christie : The composition 



of the water of the Lake of Tiberias. The water of 

 the Sea "of Galilee is shown to differ widely from 

 that of almost all lakes with an outlet, and to approxi- 

 mate more in composition to that accumulated in 

 closed basins. The difference is due to the peculiar 

 nature of the soluble constituents of the rocks of the 

 neighbourhood, as shown by analyses of spring waters 

 near the town of Tiberias.— Major J. Stephenson : 

 Aquatic Oligochaeta of the Lake of Tiberias. The 

 collection obtained by Dr. Annandale from the edge 

 of the Lake of Tiberias includes specimens of a 

 number of species, representing several different fami- 

 lies ; but the majoritv are immature, and only two can 

 be identified— a Helodrilus described as new, and 

 Criodrilus lacuum, a common European species. 



BOOKS RECEIVED. 



Mysore Geological Department. Report of the Chief 

 Inspector of Mines for the Year iqii-12, with Statis- 

 tics for the Calendar Year 1911. Pp. 45+ I2 tables + 

 81. (Bangalore: Government Press.) 2 rupees. 



The Coleoptera of the British Islands. By Dr. 

 W. W. Fowler and H. H. J. Donisthorpe. Vol vi. 

 (Supplement.) Pp. xiii + 351 + 3 plates. (London: 

 Lovell Reeve and Co., Ltd.) iSs. net. 



Handbuch der Morphologie der wirbellosen Tiere. 

 Edited bv A. Lang. Band 3, Lief. 1. Band 4, 

 Lief. 2. "(Jena : G. Fischer.) 5 marks each Lief. 



