2/6 R. PEARL AND M. R. CURTIS. 



at the end of the funnel and became gradually heavier and 

 higher. In the albumen-secreting portion of the tube they were 

 heavy, high and irregularly lobed. The ridges at the cranial end 

 of the isthmus were thin and straight but did not preserve that 

 character so strictly as in a normal oviduct, so that near the 

 shell gland they resembled the ridges in the albumen-secreting 

 portion. The shell gland ridges were high, very irregular and 

 much lobed. These turned dark in the preserving fluid as we 

 have often noticed to be the case with normal oviducts. The 

 vagina had the characteristic low straight ridges. The dimen- 

 sions of the various parts of the oviduct were as follows : 



Length of funnel neck 2.5 cm. 



Width of flattened tube at point where funnel passes into 



albumen portion 0.6 " 



Length of albumen portion 18.5 " 



Width of flattened tube at widest part of albumen portion 0.9 " 



Length of islhmus 7.0 " 



Length of shell gland 7.5 " 



Width of widest part of shell gland 2.0 " 



Length of vagina 11.5 " 



The opening of the oviduct was in the normal position, 

 slightly to the left of the midventral line. The margin of the 

 opening was folded, but was inconspicuous while in a laying hen 

 it protrudes a little into the cloaca. A large probe was passed 

 from the vagina into the cloaca demonstrating a natural opening 

 between these organs. 



The left suprarenal body was covered by the cranial end of 

 the ovary as in normal cases. 



Directly opposite the middle of the ovary on the left side of 

 the body was a small irregular, though generally ovoid organ, 

 the testis (Plate II., 7"). This organ was 9 mm. in length by 6 

 mm. in greatest breadth. It was attached to the body wall by 

 its broad side with the more convex side median and the nearly 

 straight side lateral. This organ did not appear macroscopically 

 like a testis but looked to the naked eye or through the hand 

 lens, like a small mass of the same sort of tissue as the ovary 

 already described, but covered with an additional layer of con- 

 nective tissue which obscured the minute foldings. 



From the lateral side of the testis a duct passed to the cloaca 



