MERICAN 
NATURALIS 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 
JUNE, 1891. 
CONTENTS- 
E. metro 
ie oe ra of the Cretaceous Fo 
Surface Geology of 4 ; 
Wapanine ¢ CELLS IN ANIMAL BODIES 
k HUustrated], J. L: Kellogg, 51% 
RECENT va Row IN New — 
- [Hlustrated], . Ralph S. Tarr, 
OF THE OEE o THE a 
k M. Chapman 
cms Cutaseybornonvs, 
. Daniel D. Slade, 
OF Maini foao [Continued], 
J- S- Ki "gsi, 
