26 



Livingston : Chemical stimulation of a green alga 



tabulated as follows. Underneath his molecular concentrations I 

 have placed the equivalent strength in terms of normal. 



Table of results obtained by Ono 



Subject. 



Protococ- 



cits. 



Concentration for acceleration of 



vegetative growth. 



ZnSO 



CoSO^ 



+ 



HgCL 



\ lO 



-e 



m 



xo-^m 



25;//ioOjO0Oj0oo 



Injurious 

 concentration 



\ lo ^m 



NaF 



LiNQ 



2S 



10"^ m 



2w/l, 000,000 — 5;//l, 000,000 



No acceleration. 



5;//i, 000,000 j 2 5;// 1 J 000, 000 



25;z/l, 000,000 



lo~^m 



Ch roococ- 



CUDK 





Hor77iid' 



tUfH. 



Stigeoclon 



Aspergil- 

 lus. 



KgAsO^ 



ZnSO^ 

 CuSO^ 

 FeSO^ 



NiSO 



8;;/ 1, 000^ 000 



^-^ 10-* m 

 4 w/ 1, 000, 000 



26///lOO,000,000 

 2«/l0j000,000 ■ 



lor^m 



4;;/ 1 0,000 



Normal growth 



lor^m 



w/ 1 0,000 



f?i 



l3;//io, 000,000 



CoSO^ 



CuSO^ 



Fenicil- 



ZnSO^ 



NiSO^ 

 CoSO^ 

 CuSO^ 

 HgCl, 



Li NO, 



NaF 



FeSO^ 

 CoSO^ 

 HgCL 



lO'^'m 



5;;/l, 000,000 



No acceleration. 



.—3 



2;z/l, 000,000 — 25;;/loo,ooo 



"55 



lO'^m 



1 10- 



m 



2;// 1 0,000, 000 — /2/ioo,ooo 



lo'^m 



1'^ 



2k/ 1 0,000, 000 



No acceleration. 



i 10- 



}?i 



lor^/H 



6///ioo,ooo — 5v//io,ooo 



J 10- 



m 



lor^m 



6;// 1 00, 000 — 5«/ 1 0,000 



ir 10—;// 



1 



lo~'/« 



3«/ioo,ooo — 25w/ioo,ooo 



\o~^m 



3«/ 1 00, 000 



I IO~*fff 



6 w/ 1, 000,000 



OT 



6/i/io,ooo 



.T5 



lo'^m 



6w/io,ooo - 



} IO"*W 



1 25;// 1, 000, 000 



tV 10-^/? 



3«/ioo,ooo 



i\ 10 '^^' 

 3n/i 00,000 - 



^ io~^w 



2 5;// 1 GO, 000 



— 3;z/ioo,ooo 



5«/ioo 

 J lo^V/ 



I25«/lO0,O0O 



J lo-V/ 



25;^] 1 00,000 



25«/lOO,000 



J io-^/« 

 25«/ioo,ooo 



2;j/io,ooOjOoo 



lO"^/// 



nj 1,000 

 5w/io,ooo 



IO~*W 



4- lO'^;// 



33/^/1,000,000 66;//io,ooo,ooa 



io~^m 



«/ 1, 000, 000 



to~*;;/ 



25/2/1,000,000 



—5 



^ 10 "W 



w/ 1, 000, 000 



«/l, 000,000 ~ 



2 /z/ 1 0,000, 000 



3w/ 1 00, 000 



5w/ioo 



2 X IO"^/« 

 «/l,0OO 





/// 



25;;/ 1, 000, 000 



2«/ 1 0,000, 000 



lO'*^;;/ 



5;// 1,000,000 

 25/^/1, 000,00a 



25 «/ 1 0,00a 



io~^m 

 5??/ 1 00 



