CONTENTS. 



( 1 ) Eciuations of Motion of a Perfect Liquid and a 



Viscous Liquid, wheu Referred to Cylindri- 

 cal and Polar Coordinates, ( Part TI, con- 

 tinued from Vol. VII, p. 48) 



Prof. P. E. Doudna. 



(2) The Capricorns, Mammals of an Asiatic Type, 



Former Inhabitants of the Pike's Peak Re- 



i^ion, . . " 



Dk. F. W. Craoin. 



Pahk. 



21 



(H) Buchiceras (Sphenodiscus) Belviderensis ami 



its Varieties, 1^7 



Dr. F. W. Ckagin. 



(4) The Number Concept, -^2 



Dr. Florian Ca.T()ri. 



