ELISIIA MITCHELL .SCIENTIFIC SOCIETY. 17 



alkalies were examined with a view to their use in the quantita- 

 tive detei'mination of boracic acid. Some other chemioals, as 

 ferric oxide, were examined to see if thev would in anv way 

 interfere with the test when present. 



The table which follows will need no further explanation. I 

 wish to express my obligations to Dr. F. P. Venable for his 

 guidance and supervision of my work in this research. 



Fruits. 



