Volume s5-4; Issue 20

American Journal of Science

Volume s5-4; Issue 20
1

Primitive Pecora in Yale Museum

Year:
1922
File:
PDF, 765 KB
1922
3

A Crossotheca from the Rhode Island Carboniferous

Year:
1922
File:
PDF, 953 KB
1922
4

A critical phase in the history of ammonites

Year:
1922
File:
PDF, 764 KB
1922
5

Saccoglottis, recent and fossil

Year:
1922
File:
PDF, 1.31 MB
1922
6

A fossil dogwood flower

Year:
1922
File:
PDF, 692 KB
1922
8

A fossil dogwood flower

Year:
1922
File:
PDF, 692 KB
1922