644 



PROCEEDINGS OF THE AMERICAN ACADEMY. 



TABLE VIII. 



Temp. 15.5. Silver Nitrate, N. 

 Potassium Chromate, ^. 



TABLE IX. 



Temp. 16.7. Silver Nitrate, N. 

 Potassium Chromate, / 5 . 



TABLE X. 



Temp. 16.7. Silver Nitrate, N. 

 Potassium Chromate, j Z . 



TABLE XL 



Temp. 17.3. Silver Nitrate, N. 

 Potassium Chromate, t ^. 



