Index to experiment station literature, 1888-1913 ... Compiled by the late Mark Vernon Slingerland, Cyrus Richard Crosby and Mortimer Demarest Leonard ....M. V Slingerland, Cyrus Richard Crosby, Mortimer Demarest Leonard1916EN
Manual of vegetable-garden insects, by Cyril Richard Crosby and Mortimer Demarest Leonard ...Cyrus Richard Crosby1918EN