Bul. 300, U. S. Dent. of Agriculture. . PLATE I. 
D-2586 
Fic. | —THREE AND ONE-HALF YARD DIPPER DREDGE EQUIPPED WITH 
TELESCOPIC BANK SPUDS. 
D-3314 
FiG. 2.—THREE CUBIC YARD DIPPER DREDGE EQUIPPED WITH VERTICAL 
SPUDS 
