PLATE III 

Fig. 1. Liver of Black-tail or Columbian Coast Deer (Odocoileus colum 
hianus). showing the effect of liver-fluke (Fasciola magna Bassi). Note 
enlarged ducts, and fluke cut across at point “x.” 

Fig. 2. Measurement of eges of Fusciola magna, Fig. 3. Average length of Fasciola 
Length, 140 micro-mm.; width, 100 micro-mm., 45.4 mm.; width, 18.5 mm. 
(Sce page 12.) 
