A book by Alpheus Spring Packard, LL. D. who was an American entomologist and palaeontologist. He was the son of Alpheus Spring Packard (1798 -1884) and the brother of William Alfred Packard. He was born in Brunswick, Maine and was Professor of Zoology and Geology at Brown University in Providence, Rhode Island from 1878 until his death. He was a vocal proponent of the Neo-Lamarckian theory of evolution. His chief work was the classification and anatomy of arthropod animals, and contributions to economic entomology, zoögeography, and the phylogeny and metamorphoses of insects. He wrote school textbooks, such as Zoölogy for High Schools and Colleges (1904).