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BULLETIN 1481, U. S. DEPARTMENT OF AGRICULTURE 
RED RUSTFROOF APITS 
COE, ZOF PICKLES 
EACH 2OT REPRESENTS 
Fic. 2.—Distribution of the Red Rustproof oat in 1919 and the location of the two isotherms of 20° 
and 30° F. (isotherms adapted from Salmon) 
126,37 OD PFIORLLS 
SOS DP EYCH DOT REPRESENTS 
1000 ACRES 
Fic. 3.—Distribution of the Fulghum oat in 1919 and location of the two isotherms of 20° and 30° F. 
The distribution of Fulghum both as a fall-sown and a spring-sown variety has increased 
materially since 1919. (Isotherms adapted from Salmon) 
