58 MAMMALIAN DESCENT. [Lect. II. 



"It is hoped that durmg the coming year investigations may he 

 completed which shall determine the exact amomit of oxygen 

 consumed in this pharyngeal resjDiration, and the structure of this 

 unusual respiratory organ in the soft-shelled Turtle." — From the 

 Proceedings of the American Association for the Advaricement of 

 Science, vol. xxxii., Mimieapolis Meeting, August, 1883. 



