180 



(ESOPHAGOSTOMA COLUMBIANUM, Curtice. 

 Plate XXVII. 



Fig. 1. Piece of cajcum exhibiting tumors caused by the embryos of CEsophagostoma 

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

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

 XXVI, Fig. 1. 



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

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



