Philip S Humphrey

Philip S Humphrey is the author of "Molts and Plumages of Flying Steamer-Ducks (Tachyeres Patachonicus) (Classic Reprint)", "Charles Darwin" and "Taxonomy and Identification of Steamer-Ducks".

Books by Philip S Humphrey

Charles Darwin
Humphrey, Philip S.
Paperback: $50.95

Charles Darwin
Bates, Marston
Electronic book text: $52.95

Taxonomy and Iden...
Livezey, Bradley C.
Paperback: $14.95

Molts and Plumage...
Humphrey, Philip S.
Hardback: $24.64