Drawing
Spring Wild Flowers of the Forest Floor: A Glossary of Terms Used in this Key1944
Watts, May Theilgaard
Drawing
Spring Wild Flowers of the Forest Floor At The Morton Arboretum: A Key To Identification, page 11944
Watts, May Theilgaard
Drawing
Spring Wild Flowers of the Forest Floor At The Morton Arboretum: A Key To Identification, page 21944
Watts, May Theilgaard
Drawing
Spring Wild Flowers of the Forest Floor At The Morton Arboretum: A Key To Identification, page 31944
Watts, May Theilgaard
Drawing
Spring Wild Flowers of the Forest Floor At The Morton Arboretum: A Key To Identification, page 41944
Watts, May Theilgaard
Drawing
Spring Wild Flowers of the Forest Floor At The Morton Arboretum: A Key To Identification, page 51944
Watts, May Theilgaard
Drawing
Spring Wild Flowers of the Forest Floor At The Morton Arboretum: A Key To Identification, page 71944
Watts, May Theilgaard
Drawing
Spring Wild Flowers of the Forest Floor At The Morton Arboretum: A Key To Identification, page 61944
Watts, May Theilgaard
Drawing
Forest Nature Trail Guide, page 10 illustrations and layout with preliminary sketches1946
Watts, May Theilgaard
Drawing
Forest Nature Trail Guide, back cover/page 16 illustrations and layout with preliminary sketches1946
Watts, May Theilgaard
Photographic image
Education charts: Town and Suburb