You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:


Log in to your personal account or through your institution.

Geology and Palaeontology

The American Naturalist
Vol. 19, No. 7 (Jul., 1885), pp. 699-708
Stable URL:
Page Count: 10
  • Download PDF
  • Add to My Lists
  • Cite this Item
We're having trouble loading this content. Download PDF instead.