PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE, 
WITH THE COOPERATION OF THE ASSOCIATION OF 
LAND-GRANT COLLEGES 
WASHINGTON, D. C. 
WASHINGTON : GOVERNMENT PRINTING-OFFICE I 10*1 
Carbon lor Certain Sweet Potato 
Pag« 
189 
Respiration of 
Grown on a 
Ji L. WE IME R and L« L. HARTER. 
(Contribution from Bureau of Plant Industry) 
Sweet Potato Storage-Rot Fungi When 
-Nutrient Solution - - - - - 211 
V L. L. HARTER, and J. L. WEIMER 
(Contribution from Bureau of Plant Industry) 
Heritable Variations in an Apparently Uniform Variety of 
Cotton - «. - - - - - - - . - 227 
THOMAS H. KEARNEY 
\ (Contribution from Bureau of Plant Industry), , 
(Some Relations of Temperature to Growth and Infection 
' in the Citrus ScabFungus Cladosporium citri - - 243 
H. S. FAWCETT 
; ' (Contribution from California Agricultural Experiment Statio^) \ 
(Bacterial Wilt of Castor Bean (Ricinus communis L.) - 255 
ERWIN F. SMITH and G. H. GODFREY 
(Contribution from Bureau of Plant Industry) 
Stewart’s Disease of Com - - - - - - - 263 
FREDERICK V. RAND and LILLIAN C. CASH 
(Contribution from Bureau of Plant Industry) ^ 
Quality of Irrigation Water in Relation to Land Reclamation 265 
CARL S. SCOFIELD and FRANK B. HEADLEY 
(Contribution from Bureau of Plant Industry) 
