82 Mr. Morgan's Description 



upon the living marsupial animal will be found sufficiently 

 ample, and our opportunities for making anatomical examina- 

 tions upon the dead subject are by no means rare. With such 

 advantages therefore, I trust that the time is not far distant 

 when we shall be furnished with a full and distinct account of 

 the object of our researches ; and that by a detail of connected 

 facts, the phsenomena attending the changes which occur during 

 the foetal life of marsupial animals will be as clearly under- 

 stood as those which take place during the progress of genera- 

 tion in other mammiferous quadrupeds. 



EXPLANATION OF THE PLATES. 



Tab. II. 



Fig. 1. Represents the interior of the pouch of a virgin Kan- 

 garoo, the fore part of which has been cut away to 

 show — a. The upper and smaller teat. b. The small 

 circular aperture occupying the situation of the fu- 

 ture marsupial teat. A bristle has been introduced. — 

 Page 62. 



Fig. 2. A view of the mammary glands of the same pouch, 



shown by removing the skin, &c. from the abdominal 



muscles, and reversing the preparation exhibited in 



Fig. 1. a. The larger gland or true mamma cut open 



to expose its membranous canal, b. The upper and 



smaller gland, c. The unopened membranous canal 



shown by dissecting away its connections with the 



gland, d. The canal slit open to show its termination 



in a projecting papilla, e. A bristle passed through 



the canal into the pouch. — Page 63, 64. //. Glands 



apparently belonging to the absorbent system. 



Tab. 



