Maclure William

Observations On The Geology Of The United States Of North America

Observations On The Geology Of The United States Of America: With Some Remarks On The Effect Produced On The Nature And Fertility Of Soils, By The Dec

To The People Of The United States

Observations On The Geology Of The United States Of North America

To The People Of The United States

Observations On The Geology Of The United States Of America: With Some Remarks On The Effect Produced On The Nature And Fertility Of Soils, By The Dec

A Memoir Of William Maclure, Esq., Late President Of The Academy Of Natural Sciences Of Philadelphia

A Memoir Of William Maclure, Esq., Late President Of The Academy Of Natural Sciences Of Philadelphia