Natural history of New York

Each v. has also individual t.-p.

The Pleistocene of the middle region of North America and its vertebrated animals /

Mode of access: Internet.

Lower and middle Cambrian formations of the Mohave desert,

Mode of access: Internet.

Hints on emigration to Upper Canada : especially addressed to the middle and lower classes in Great Britain and Ireland /

Mode of access: Internet.

Geohydrology and chemical quality of water in Middle and Upper Jurassic and Lower Cretaceous rocks, western Kansas / by Jack Kume ; prepared in cooperation with the Kansas Department of Health and Environment.

Mode of access: Internet.