LIST OF EXPERIMENT STATION AND DEPART- 

 MENT PUBLICATIONS REVIEWED. 



Note. — The publications of the United States Department of Agriculture, except 

 those of the Weather Bureau, may be purchased from the Superintendent of Docu- 

 ments, Washington, D. C. For the publications of the Weather Bureau, requests 

 and remittances should be directed to the Chief of the Bureau. The price of the 

 Record is $1 per volume, or 10 cents per number. The prices of other technical 

 publications are given in the list above. The publications of the State experiment 

 stations are distributed from the stations and not from the Department. 



ILLUSTRATION. 



Fig. 1. Apparatus for measuring the oxidation of soils 



VIII 



Page. 

 536 



