7 



of 

 Water 



- y 



€t^ ^ '.. — 



- {sfei^n^-' i Weleht I Volume I 



Fouling 



ness 



7 



7 o 



3c 



3.r 



Weight 

 of 



Water 



3. ^ 7 



^-"^"f"^ , /^^pa*^^--^^-^^^ <^x2<,^CZ]lt..<«,4.,<.,«i^ /3-^-^.-4^--*-n. 



i 



^C>^ 7 J 



