Reading the Landscape of America

1975

Tree Finder

A Manual for the Identification of Trees by Their Leaves

1963

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

Winter Tree Finder

A Manual for Identifying Deciduous Trees in Winter

1970

Desert Tree Finder

a pocket manual for identifying desert trees

1974