Mr. Waite testing the validity of pear blight germs by inoculation, Department grounds, July, 1893.

Image (illustration or photograph) for this item, linking to higher res image.

Citation

Unknown. “Mr. Waite testing the validity of pear blight germs by inoculation, Department grounds, July, 1893..” Special Collections, USDA National Agricultural Library. Accessed December 1, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/299.