February 13, [919] 



NATURE 



479 



sponding coarsei gravels also resting upon the 

 . halk on the noi th side I hami s, and the 



rrence described bj Mr. Gilberi now shows thai 

 ■ the casi . 



< VMBRIOGl . 



Philosophical Society, Februarj 3. E. II. Neville: 



The Gauss-Bonnei theorem for multiply connected 



is of .1 surfaci L. J. Mordeli : The representa- 



of a number as a sum of an odd numbi 



res. \. M. Shah and B. M. Wilson: Certain 



empirical formulae connected with Goldbach's theorem. 



G II. Hard] and J. E. Littlewood : Notes on Messrs. 



Shah and Wilson's paper entitled "Certain Empirical 



Formulae Connected with Goldb ch's rheorem;" 



M INI III M I R. 



Literar] and Philosophical Society, |anuary jr. Mi 

 \\ . Thomson, president, in thi chair. Discussion on 



neans bj which thi societj maj promote mosi 



ivelj the advancemenl and application "l learn- 

 M nchester. Among the suggestions pul for- 

 ward were thi follow ing : nil hai « hile thi - 

 -!i. ui !•! retain its present functions as .1 learned society, 

 its members mighl meel with others interested in the 



ricemenl of science Fi ' discussion in the 



rooms of the society; (2) thai special lectures b\ 



nl men on scientific subjects ol general int. 

 should be arranged from time to time; (3) thai ad- 

 practical applications of science bv 



ific men engaged in industn should be invited; 



141 thai the presidents of the various scientific societies 



in Manchester mighl be made associate or horn 



members during their period ol office, and thai such 



- should be invited from time to time to hold 



il meetings of general interesi in the society's 



; and (5) thai facilities migh irranged for 



members to consu he evenings, and 



arrangements mighl be madi wherebj members 

 of oth should I" .iiil' "ii 1 ei tain ti rms to 



use ■ ' ■ 



P VRIS. 



Uadem) ni Sciences, January 27. M. Leon Guignard 

 in the chair. I.. Mangin : The harmful action ol thi 

 emanations from the Cheddi factory. The fumes 

 this explosives works are finalh b; thi 



of moisture into hydrochloric acid. The zoni 

 - in ellipse ten kilomi tres b\ four kilometres, 

 rrees in 1 1 1 i ■— area are unequalh affected; Epici 

 severely, damaged and ultimately killed. Pitius sylves- 

 - attacked, bul less severelj ; firs are onh slighth 

 injured. Yews and larches show no alteration 1 

 (jiiichard : The deformation of quadrics. I Aries: 

 Formula giving the latent heal of evaporation of a 

 liquid. II. Parent) : Regulatoi and metei for the yield 

 iorizi mtal or slightly inclined 

 gallery. M. Wilfred Kilian was elected a non-residenl 

 niembei in succession to thi lati M. Pierre Duhem. 

 I. Drach : The algebraical solutions of differential 

 ions of the firsl order. P. Montel : Polynomials 

 1 imalion and thi 1 cist, m 1 ol diffi 1 1 ntials. 

 Maillet : Determination ol thi integral points of 

 iraical unicursal curves with integral coefficients. 

 1 ; Rahut : Scientific 1 uli - Iriving 



tunnels under a sheei ol water. rhi author's 

 an summarised undei ten headings, 

 everything being subordinated l " the prevention ol 

 1 larenl economj of the usual 



method has been proved in practici to be illusory. 

 I. Guillaume Observations of ih< sun made at the 

 Lyons Observatory during the third quarter of 1918 

 Observations wen j>-> — ii>l. on eighty-six ila\>, and 

 es an —is < ■ o showing thi surfaces of the sun- 

 -. their distribution in latitude, and the distribu- 

 of ilii faculae in latitude. <i. A. '-e Ro\ ■. Fires 



produced b) Hertzian waves. I'hi investigation "I 

 1 ises of In 1 , afti animation of the 



i las led to thi bly 1 lertzian 



waves were responsible. Vn instrument is figured and 

 described by which this incendian action "l the 

 Hertzian waves upon various materials has been 

 investigated experimentally. In practice a compressed 

 ball ol cotton held b\ a steel band mighl be fired b\ 

 wireless messages in two ways: a band mighl bi 

 broken, leaving the broken ends closi togethei bul noi 

 in contact, or such bales mighl be piled in such .1 

 manner that short sparks could pass bi tween the rings 

 and sel fire to the cotton. V. Cremieu : Experimi 

 researches on gravitation. M. Swyngedauw : ["hi 

 energ\ losses in the dielectrics ol armoured cabjes. 

 F. Bourion and Ch. Courtois : The conditions ol 

 utilisation of Schilling's apparatus for the control ol 

 industrial hydrogen. For use in ballooning, a direcl 

 measun of the density of the gas is the most useful 

 experimental figure, and this is rapidh measured b\ 

 Schilling's apparatus, rhi necessity for correcting thi 

 indications for moisture is emphasised, and a formula 

 introducing this correction given. J. Jolibois and A. 

 Sanfourche : The constitution of nitrous fumes. If :iii 

 and nitric oxide are mixed in thi ratio required to 



\ u, thi combination is instantaneous; if in 

 the ratio to form N z O . the N < > stage is 

 rapidly attained, and a further too seconds is required 

 to form 92 per cent, of \ <>,. -J. Repelin : A point 

 of historj of the Pacific Ocean. The islands ol 

 French Polynesia are generally regarded .1- oi entireh 

 volcanic or coral origin. The island of Mak.it. 

 contains Tertiary deposits, and details of the fossils 

 ■' >iind are given- 1 Mathias : Run in F' ratio < 1 

 dilation of the anomalies and of the altitude 

 cient. It is shown that in France the altiludi 

 co fficienl is constant al all points on a geographical 

 parallel.— J. Pantel : Calcium, a form of reserve in 



male .if the Phasmides : its forms of elimination 

 in the two sexes. — C. Delezenne and II. Morel: Thi 

 catalytic action of snake-poison on the nucleic acids 

 Nucleii acid from yeast and thymonucleic acid wen 

 treated in neutral solutions with various snake-poisons. 

 Phosphoric acid is [.induced. 50 C bi ing the 



best temperature for the reaction. The snake-poisons 

 van- in their action, the greater toxicity corresponding 

 with greater hydrolytic action towards the nucleii 

 acids.- A. Vernes : The graphics «ol the syphilitic sub- 

 ject. It is impossible to make a certain diagnosis ol 

 syphilis from a single examination of serum, since ii 

 is only from the form of the curve obtained from a 

 series'of successive examinations that a decisive con- 

 clusion can be drawn.— R. Douris : The use of heated 

 sera in the Vernes sero-reaction (sero-diagnosis ol 

 syphilis). A. Berthelot : Biochemical researches on 

 war-wounds. Searching for the presence of micro- 

 organisms in wounds analogbus with B. aminophilus, 

 and capable of forming the ptomaine (3-imidoazoethvl- 

 amine from histidine, such bacilli were discovered in 

 cases of gas gangrene and largi crushed wounds. 

 Em. Bourquelot and M. Bridel : Simultaneous bio- 

 chemical syntheses ol gentobiosi and two 8-gluco- 

 sides of gfvcol b\ emulsin. F. Dienert and \ 

 (iuillerd : Aqueous autolysed yeasl for the cultu 

 B. coli. The continuous rise in the price of peptone 

 has led to a search for rnore economical media, and a 

 method is described starting with pressed yeast ft 

 ha> i.e. n found thai peptone broth costing 3 francs 

 p, , |i,,,. , an be p< 1 fei th replaced b\ autolvsi d yeasl 

 broth costing 20 centimi s per litre. V. I'^ 11 "" '• Pseudo- 

 3 , .. m w disease of the larva ol Lym 1 



In. diseasi is caused bi .1 new cocco- 

 bacillus. which has I., en is "" d Bacillus 



. tricola adiposus. 



MO. 2572, VOL. 



102] 



