Bul. 300, U. S. Dept. of Agriculture. PLATE X!. 
~~ SS 
SP 
D-3335 
Fig. |.—DRY-LAND ROTARY GRAB-BUCKET EXCAVATOR. 
* 
lien. bccotis 
pire: 
nada 
tae 
FIG. 2.—NONROTATING DRY-LAND GRAB-BUCKET EXCAVATOR. 
