Bul. 664, U. S. Dept. of Agriculture. PLATE II. 
Fic. 1.—STEP LOAD, PLACED FROM ENDS, CENTER SPACES FILLED WITH STRAW. 
WorRK UNUSUALLY WELL DONE. ! 
Fic. 2.—STEP LOAD, PLACED FROM ENDS. CONFUSION AT THE CENTER, AND SPACES 
LOOSELY FILLED WTH STRAW, 
