456 ALIMENTARY OANAL, ETC., OF AMIURUS CATLTS. 



PLATE VII. 



Eigs. 1-12 are from Amiurus catus ; Fig. 13, from A. nigricans. 



Fig. 1. — Epithelium of the mucous membrane of the mouth, the section 



being from near the tongue ; a, a clavate cell ; b, slime cells. 



Magnified about 400 diameters. 

 Fig. 2. — A transverse section of the wall of the ojsophagus showing the 



arrangement of its coats. Low power. 

 Fig. 3. — Superficial epithelium of cesophagus isolated by maceration in a 



mixture of serum and Midler's fluid. Magnified 440. 

 Fig. 4. — Epithelium and glands of the stomach, hardened in Midler's fluid. 



Magnified 235." 

 Fig. 5. — A peptic gland of young cat-tish four hours after swallowing food. 



Treated with osmic acid and alcohol. Magnified 590. 

 Fig. 6. — Superficial epithelium of pylorus ; a, crypt forming one of the so- 

 called pyloric glands. Hardened in Muller's fluid. Magnified 235. 

 Fig. 7. — A transverse section of the wall of the midgut showing the various 



coats ; s, the serosa ; mo, the outer or longitudinal muscular coat ; 



mi, the inner circular layer of muscle fibres ; sm, the submttcosa ; 



mm, muscularis mucosas ; m, the mucosa. Low power. 

 Fig. 8. — Superficial epithelium of the midgut isolated fresh in serum. Oc. 4, 



Imm. obj. H, Zeiss. 



Fig. 9. — Fresh epithelium of endgut teased out in serum. Oc. 4, obj. H, 

 Zeiss. 



Fig. 10. — A portion of a section of the liver showing the radial capillaries cut 

 transversely ; gc, gall capillary filled with indigocarmine by natu- 

 ral method, and shown here by the broad black line ; rv, radial 

 vessels of the lobule ; gt, a hepatic cylinder surrounded by the rad- 

 ials and their transverse branches, with the gall capillary in the 

 centre. Magnified 590. 



Fig. 11. — A section of a smaller division of the portal canal ; V.P., interlobu- 

 lar veins ; gd, gall ductlets ; ha, hepatic artery ; pt, pancreatic 

 tubules. Magnified 440. 



Fig. 12. — A pancreatic tubule showing the condition some time after food is 

 taken. Magnified 590. 



Fig. 13. — Diagram showing the relation of the gall-bladder and duct to the 

 pancreatic duct ; dhc, hepato-cystic ducts ; dp, pancreatic duct ; 

 dc, ductus choledochus. 



