58 MAMMALIAN DESCENT. [LECT. II. 



" It is hoped that during the coining year investigations may be 

 completed which shall determine the exact amount of oxygen 

 consumed in this pharyngeal respiration, and the structure of this 

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

 Proceedings of the American Association for the Advancement of 

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



