REPORT OF THE CHEMIST. 



To the Director of the Cornell University Agricultural Experiment 

 Station. 

 Sir :— 

 I have the honor to report the following account of the work 

 that has been done in the Chemical Division of this Station 

 during the year 1898-1899. 



Forty -two analyses of cattle foods, of which twelve were con- 

 dimental ; ten analyses of soils for nitrogen, phosphoric acid 

 and potash ; ten analyses for water only ; nine analyses of 

 various substances for fertilizer constituents ; thirteen analyses 

 of insecticides for arsenic, copper and in some cases other 

 constituents. 



Much time was given for three months in the fall to the 

 determination of sugar in sugar beets grown in the State for 

 experimental purposes. Also much time has been consumed in 

 working out and testing methods of analysis of some of the new 

 insecticides, in order that the published results should be 

 accurate and reliable. Many of these substances are offered as 

 substitutes for Paris green, and contain other constituents than 

 copper combined wnth the arsenic. Some are colored with dye 

 stuffs to imitate the color of the regular Paris green. 



Respectfully submitted, 



G. C. Caldwell, 

 G. W. Cavanaugh. 



