[en] [Gutenberg 60749] • A Thousand-Mile Walk to the Gulf Mariner Books
[en] [Gutenberg 62117] • Water Power for the Farm and Country Home Forgotten Books
[en] [Gutenberg 63027] • The New Wonder of the World · Buffalo, the Electric City Media Hatchery
[en] [Gutenberg 63788] • Plants Poisonous to Live Stock Wentworth Press
[en] [Gutenberg 44849] • Colouration in Animals and Plants Wentworth Press
[en] [Gutenberg 26393] • The Medicinal Plants of the Philippines Palala Press
[en] [Gutenberg 39357] • Texas Honey Plants Scholar's Choice
[en] [Gutenberg 52513] • Notes of a naturalist in South America Palala Press