Fic. 2. Diagrammatic representation of 
the principal internal organs of the 
‘fowl. 1, tongue; 2, pharynx; 3, up- 
per portion of esophagus; 4, crop; 5, 
lower portion of esophagus; 6, proven- 
triculus; 7, gizzard; 8, origin of duo- 
denum; 9, first branch of duodenum; 
10, second branch of duodenum; 11, 
origin of floating portion of small in- 
testine; 12, small intestine; 12’, ter- 
minal portion of small intestine; 13, 
free ends of ceca; 14, origin of ceca; 
15, rectum; 16, cloaca; 17, vent; 18, 
mesentery; 19, left lobe of liver; 20, 
right lobe of liver; 21, gall bladder; 
22, spleen; 23, pancreas; 24, lung; 
(Heart not shown but located approxi- 
mately here) ; 25, ovary; 26, oviduct; 
27, kidney; 28, ureter; 29, upper 
larynx; 30, trachea; 31, 
lower larynx or syrinx; 
32, bronchus; 33, cleft 
palate; 34, common ori- # 
fice of eustachian tubes. 
(Redrawn from Chauveau, 
with slight additions) 
11 
