A. K. Wells

Outline of Historical Geology

By A. K. Wells, J. F. Kirkaldy

Petrology of the Igneous Rocks

By F. H. Hatch, A. K. Wells, M. K. Wells

Outline of Historical Geology

By A. K. Wells, J. F. Kirkaldy

Outline of Historical Geology

By A. K. Wells

Petrology of the Igneous Rocks

By F. H. Latch, A. K. Wells, M. K. Wells

Outline of Historical Geology

By A. K. Wells, J. F. Kirkaldy