17 



i has been erected at the Bureau of Chemistry, in which manufacturing 

 I experiments have been conducted using various materials and wastes, 

 [ and a course of lectures given on the principles involved, the practice 

 | of distillation, methods of denaturing, applications of the finished 

 [product, and the laws and regulations governing its production. 

 | This work is still being continued by a number of experts acting under 

 [the direction of the Chief of Bureau, special attention being given to 

 I the cost of manufacture, amount of fuel used, etc. 



j INFLUENCE OF ENVIRONMENT ON COMPOSITION' OF AGRICULTURAL 



PRODUCTS. 



This Bureau is especially studying the influence of environment 

 upon the chemical composition of wheat, barley, and the sugar and 

 starch producing plants. The need of further study of these sub- 

 jects is generally recognized and in its prosecution the Bureau has 

 the active collaboration of a number of the State experiment stations 

 as well as the cooperation of the Bureau of Plant Industry. Studies 

 on wheat, barley, and sugar corn are in progress under the direct 



supervision of the Chief of Bureau. 



i 



Approved : 



JAMES WILSON, 



Secretary of Agriculture. 



WASHINGTON, D. C., July 1, 1909. 



[Cir. 14] 



