Petrology of Parícutin Volcano Mexico: Issue 965

Some Effects of Recent Volcanic Ash Falls: With Especial Reference to Alaska, Issue 1028

Microscopic Determination of the Nonopaque Minerals: Issue 1627

Geology of the Near Islands, Alaska: Issue 1028

Geology of Unalaska Island and Adjacent Insular Shelf, Aleutian Islands, Alaska: Issue 1028