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CESOPHAGOSTOMA COLUMBIANUM, Curtice. 

 Plate XXVII. 



Fig. 1. Piece of csecum exhibiting tumors caused by the embryos of (Esopkagostonia 

 Columbianum, natural size. The various stages of growth are represented 

 by the different sized tumois. The smallest are better shown iu Plate 

 XXVI, Fig. 1. 



Fig. 2. Cross-section of Fig. 1, at a a; b, mucous membrane; c, submucous; d, 

 muscular and serous layers ; e e e, section through the cheesy masses. 



