Desert Tree Finder

a pocket manual for identifying desert trees

1974

Flower Finder

A Guide to the Identification of Spring Wild Flowers and Flower Families East of the Rockies and North of the Smokies, Exclusive of Trees and Shrubs

1955

Reading the Landscape of America

1975

Tree Finder

A Manual for the Identification of Trees by Their Leaves

1963

Winter Tree Finder

A Manual for Identifying Deciduous Trees in Winter

1970