308 



WILEY— INFLUENCE OF PRESERVATIVES 



[April 25, 



Ph 



X 



«U 



+ S- 







O + S + 



-. I 



o T^ n o + c 



I 2m.S +'S.^ +s^ 

 h:E5 s-.s S-.S 



I + 



HtS 





1=1 





Si— bo 



X S = 



Mow 



^■^ s 



-"a 2 

 M-O B 

 3 c4 cA 



s =- 



3 3 



a - 



« 5 



S S 

 o S 



T3'S , 

 rt 5 rt 





c.S »J 



« 3 

 E2. 



c c c 

 .5^-2 3 



5 rt-a c 



3 



CT-'S 





°? 



E o i« 



:^ -= rt 



>,u I +.5f 



I .5* 



•0.2 



Ph 



