SHAPE AND STRUCTURE OF ALIMENTARY VISCERA OF PORPOISE. 



329 



EXPLANATION OF FIGURES. 



Fig. 1. Inlet of pelvic cavity of male porpoise (viewed from abdominal cavity). 



Fig. 2. The hinder part of the abdominal cavity viewed from the side, showing inlet of pelvic cavity. 



Fig. 3. Section of first compartment of stomach of porpoise stained in hsematoxylin-eosin. x 96. 



Zeiss, oc. 4, obj. bb. 

 Fig. 4 (a). Outline of section of second compartment of stomach of porpoise, x 20, to show thickness of 



mucous membrane. 

 Fig. 4(b). Section of second compartment of stomach of porpoise stained in Benda's fluid. x 270. 



Zeiss, oc. 4, obj. dd, to show structure of secreting tubules. 

 Fig. 5. Section of third compartment of stomach of porpoise stained in hsematoxylin-eosin. x 96. 



Zeiss, oc. 4, obj. bb. 

 Fig. 6. Section of a tubule (deep end) of third compartment stained in hsematoxylin-eosin. x 270. 



Zeiss, oc. 4, obj. dd. 

 Fig. 7A. Section of fourth compartment stained in hsematoxylin-picro-fuchsin. x 96. Zeiss, 



oc. 4, obj. BB. 

 Fig. 7B. t.s. of one tubule. x 470. Zeiss, oc. 4, obj. e. 

 Fig. 8. t.s. section of upper end of intestine stained in eosin-methyl-blue. (a) natural size, (b) x 96. 



Zeiss, oc. 4, obj. bb. 

 Fig. 9A. t.s. of lower end of intestine, natural size. 

 Fig. 9B. One ruga in transverse section stained in hsematoxylin-eosin. x 20. Zeiss, oc. 4 : Beck, 



obj. 2". 

 Fig. 10. Scheme of compartments of stomach of porpoise. 



A. After Jungklaus. 



B. Hepburn and Waterdon. 



0. (Esophagus. 



O. GEsophagus. 



I. First compartment. 



I. First compartment (Kaumagen). 



G. Epithelial boundary between first and 



II. Second ,, 



second compartments. 



III. Third 



II. Second compartment. 



IV. (a) Proximal part of fourth compartment. 



III. Third 



(b) Distal „ „ „ 



IV. Fourth 



(c) Antrum pylori. 



P. Pylorus. 



P. Pylorus. 



Ad. Ampulla duodenalis. 



D. Duodenum. 



P.v. Papilla vateri. 



P.v. Common entrance of bile and pancreatic 



D. Duodenum. 



ducts, Papilla vateri. 





Int. Intestine. 



We desire to express our indebtedness to Sir Wm. Turner and Professor Schafee 

 r much friendly criticism arid suggestion during the preparation of this paper. 



TRANS. ROY. SOC. EDIN., VOL. XL. PART II. (NO. 16). 



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