494 



NATURE 



y 



Nh S. 



KJI 



I >i; Mil 1.1 I 



iii.iK Willi 

 ,.un..l .. 

 Mill it! i' 

 till- . 



I,,-, n f,,iii„l ..I ,,,;, 



<1.m1 with i>rohl.ni 

 fh.i! .'If-rr his pi.,' 



,M,,,i Inr •'- \' 



•h Yhc >..!(//; 



I llM-. 



till riiKil 



iiiilv-i s (if South 

 h;il\l.-:il<- '-piin^: 

 iiii;i!ns 1-7 i^iaiii'^ of fi-noiis 

 indium chloiiili' ])'r (^'.tllnii, 



ih. 



i'.ilir, 



i- aK 

 (■.,p. 



(;il. llM-.! AVA 1 llnnip-n 



:';i' <if nicoliiif .-i- an in>.- 

 : ,. . ^:. ; . ._!. A \va--li conlaininL; i>ii'' 

 of water kills maiu- of tlit^ \voi>t iIl^ 



It is l.< 

 an arti 

 dip-lish 



iriil. 

 niiu • 

 ,t p 



.^ i'\pl<ii|.(i 

 hv Profs, 

 ((/limi.sl. 



la^ 



'I'- '"■ 



wiiit' r nii>tli 



common usu 



the fruit- and lion : rowiT, iiicludint; tlli- , , 

 (Vs\ of apliid.'^ (Apliidida I, 



thun^ ... . till' lai'vii' of iIt- 



(Chi. \\,\\, and ni<>>-t xoiniij; cat' 



iinfi'- ,,.v..L;iic is Ick> - .xp'ii-'ive for 



at p d its price seems likrly to rise, since it is 



now .11 >•■ uiaiid for sheep-washes; ihc only hope for n fdl 

 ill price- is the more extended cultivation of tob;; 

 Ivxix'rimcnts \)\ Mr. Gnrrad at the Wye Airriculii., ,,. 

 Collei^c iiulirat" tltai coar-- varieties of tol)ac(v) can l.)e 

 ^rown h- r..' to produc:- nicotine at a rate mucli below the 

 jir-s- r.l marU'-'t pric'^ 



Ihc Agricultural Ledi; ' . issu<d from the Indian 



Government printintj ol: ains an account of the 



soya bean in India, by Mr. David Hooper, of the Indian 

 Museum, Calcutta. Although the crop is not indiijcnous 

 to India (its home being the iMr^in • . asi of .\>iai, it has 

 long been cultivated by certain liill tribes, nu»ily of 

 Mongolian origin. Only recently, however, have any 

 attempts been made at cultivation on the large scale, and 

 it is not yet clear how far it is likely to succeed. Mr. 

 Hooper points out several advantages of the crop : it is 

 highly nitrogenous, and is therefore a valuable article of 

 human diet in rire-eating countries ; it can be made into 

 certain food preparations — the Japanese make a soy-bean 

 milk, a soy-bean cheese, and the shoyu sauce — and it also 

 constitutes excellent cattle food, either in the unripened 

 state as hay or as an oil cake. Numerous analyses of 

 samples of the beans grown in India are given. 



An insect pest known as the froghopper has for some 

 years been a source of serious trouble to the West Indian 

 sugar planters. Not only does it cause a reduction in the 

 weight of cane per acre, but it plso adversely affects the 

 quantity of sugar per ton of cane and the purity of the 

 juice. The insect has now been identified by Mr. F. W. 

 Urich as Tpmaspis varia, Fabr., and a complete account of 

 present knowledge of its life-history, its effect on the cane, 

 and methods of control is given by Dr. L. H. Gough in 

 Bulletin 67 of the Department of Agriculture for Trinidad. 

 In the same publication Mr. Urich describes the cacao 

 thrips (Hcliothrips ritbrocinctus, Giard), and gives some 

 well-drawn coloured illustrations of the insect and the 

 damaged pods and leaves. 



NO. 2 17 1, VOL. 86] 



seen 



then 

 :.;'•. body, 

 iTiaximum. 

 ucepted as 



'•e mislead- 



The 



•'d by 



s the 



rvers 



■ t 



lakjin- 

 (urnisli' 



an illu-ti'.atioii ot 



th'- a(ti<>n of points on ' 



X-- an abstract from tli 

 , liajllichrii AtishilU > 

 .AVf ill wiiicli \^r. 1> 



naaili-r of photo^ran 



till- rat'- ol .'iiii;',; 



focal Iriimh <.>f ; 



to delej-inin" ill- 



lla>h.s. On !'. 



WaherV ]>a; 



with sin^l'' , - 



shown. l-\>r oiii- nj ;! 



Dr. Walt.r U:A^ ;:, 



lla>h.> laki; . 



and o-oSos., 



wholr discli; 



casis, and d ^...^ — 



inteiisitv, and duration 



lultiplt: 

 from 



lating 



e:%ed 



-cusses 



graphs 



,g ex- 



which 



.i.se of 



same 



quent 



• first 



owing 



d the 



;nattcr 



-everal 



5 Dr. 



iirring 



163s., 



: . .,..-. ;or the 



nsiders a number of such 



■ '!c i-OT-ir»:'rninrf flip nntiirp. 



f<> 



I po>.>cj.ses 

 xperiments 

 h the 

 Roval 



The speci.i' ii Pr 



in his labo; 

 on low t' :; 

 account li' . 

 Soci. ly ol .\ 

 men IS c(>\'r 

 that clit-mical jir 

 ordin.irv tviiiper.! 

 tempi rature>. and lor 

 found for wliich it is just possib!'; 

 determination and tabulation of 

 in the opinion of Prof. Pict> ■ 

 advanci' tow.ird- 

 Such a tiii'iiry, V 

 Arcliivrs ihs >ci: :hirty-two years ago. 



It :> founded on i.jp'^rature as the mean 



amplitutle of the vibratory oscillations of the molecules of 

 a body, and of specific heat as the mean attraction of the 

 bo<l\ on the molecule. By means of these definitions he; 

 arrives at the conclusion that all physical and chemical' 

 phenomena can be accounted for by the existence of two 

 distances apart at which two attract i'^L 



can 



interest 

 the meeti: 

 ij iia.- be'.n. received. The experi- 



I.'. ' ;:: :'-.••. r. ntre round the fact 

 lom at 



: • lOW 



acii process a tempera' ' e 



for it to o , :ie 



peratures would. 



..e an important 



r,e 





