58 MAMMALIAN DESCENT. [Lect. II. 



"It is lioj^'d that during tlie coming year investigations may be 

 completed Avhicli sliall determine tlie exact amount of oxygen 

 consumed in tliis pharyngeal respiration, and the structure of this 

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

 Proceedings of the American Association for tlip Adranccrnent of 

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



