III · Science
Egrets and Hippos
Subjects
Biology · Biology, juvenile literature · Hippopotamus · Hippopotamus, juvenile literature · Animals, habits and behavior · Animal behavior, juvenile literature
Language
ENG




![Cover of [William Wheeler Hubbell, authorized to apply for patents.] by United States. Congress. Senate. Committee on Patents](https://covers.openlibrary.org/b/id/10200621-M.jpg)
