Drawing
Forest Nature Trail Guide, page 6 illustrations and layout with preliminary sketches1946
Watts, May Theilgaard
Print
American crow = [graphic] Corvus americanus / drawn from nature by J.J. Audubon Engraved, printed, & coloured by R. Havell.1830s
Audubon, John James, 1785-1851.
Photographic image
Education charts: Twigs, #1
Photographic image
Poster of botanical items
Photographic image
Juglans nigra (black walnut), bark
Photographic image
Juglans nigra (black walnut), pith
Photographic image
Juglans nigra (black walnut), twig
Photographic image
Juglans nigra (black walnut), twig