William Ruschenberger

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. (Summary by A.Gramour) Author -...

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 that presents an introduction to entomology. The author was a surgeon in...

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...