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20th century
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1940s
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1940
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1949
and 3 more
people, organizations and landmarks
Watts, May Theilgaard
language
English
Subject/Keyword
Crataegus L. (hawthorn)
Drawings -- United States -- 20th century
Forest Trail
Fungi--Spores
Fungi--Spores--Morphology
Galls (Botany)--Anatomy
Garter snakes
Gravel Pits
Juniperus virginiana L. (eastern red-cedar)
Leaves--Diseases and pests--Biological control
Nature study
Nature trails
Pen works -- United States -- 20th century
Pteridium aquilinum (L.) Kuhn (bracken fern)
Trees--Diseases and pests
Trees--Diseases and pests--Law and legislation
Twigs
Ulmus L. (elm)
Wood-decaying fungi
and 12 more
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Subject/Keyword:
Trees--Diseases and pests
collection:
Collection of May Theilgaard Watts materials
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Drawing
Cedar Apple Rust: On Red Cedar and Hawthorn
1940s
Watts, May Theilgaard
Drawing
Cedar Apple Rust: Destroy, Inspect, and Spray
1940s
Watts, May Theilgaard
Drawing
Cedar Apple Rust: First Year and Second Winter
1940s
Watts, May Theilgaard
Drawing
Cedar Apple Rust: Spring
1940s
Watts, May Theilgaard
Drawing
Cedar Apple Rust: Late Summer To Fall
1940s
Watts, May Theilgaard
Drawing
Cedar Apple Rust: Early Summer
1940s
Watts, May Theilgaard
Drawing
Forest Nature Trail Guide, page 9 illustrations and layout with preliminary sketches
1946
Watts, May Theilgaard
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