Bui, 300, U. S. Dept of Agriculture. 
Plate V. 
D 12395 
Fig. 1.— A 1-Yard Dry-Land Dipper Excavator Mounted upon Caterpillar 
Tractors. 
D123% 
Fig. 2— A 1-Yard Dry-Land Dipper Excavator Mounted upon Trucks. 
