The Elements of Entomology is one of seven in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. It is a succinct little textbook from 1845 presents an introduction to entomology. The author was a surgeon in the U.S. Navy and president of the Academy of Natural Sciences.

The Elements of Ornithology is one of seven in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. This succinct little textbook from 1845 presents an introduction to ornithology. The information, albeit not current, is still interesting and of use as a general overview of bird biology and classification. The author was a surgeon in the U.S. Navy and president of the Academy of Natural Sciences.

The Elements of Mammalogy is one of seven in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. This succinct little textbook from 1845 presents an introduction to mammalogy. The information, albeit not current, is still interesting and of use as a general overview of mammal biology. The classification of mammals has changed considerably since this time. The author was a surgeon in the U.S. Navy and president of the Academy of Natural Sciences.

The Elements of Botany is one of seven in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. It is a succinct little textbook that presents a solid introduction to plant science.