220 



PROCEEDINGS OP THE AMERICAN ACADEMY 



TABLE IV. 

 2 KOH + H.jSO^. A = B = 500. d = 8.5. 



TABLE V. 

 1 Alum + 6 KOH. A = B = 500. d = 8.5. 



TABLE VL — Analyses. 

 1 Alum + X KOH. 



