Bul. 1227, U. S. Dept. of Agriculture. PLATE V. 
TOTAL RODENT CATTLE 
PROTECTION GRAZED GRAZED 
AREA AREA 
“RODENT _ CATTLE 
PROTECTION GRAZED GRAZED 
AREA AREA 
TOTAL PROTECTION! Prairie Doc | CattLe GRAZED 
PLOT | PLOT PLOT 
B23891; 6823889; B25188 
WHEATGRASS (AGROPYRON SMITHII) FROM CLIP QUADRATS, COCONINO, 
ARIZ. 
Cuttings in a, b, and c made after summer grazing in the years 1919, 1921, and 1922, respectively. 
