Excerpt from The Principles of Biology, Vol. 2 Tax proof sheets of this volume, like those of the last volume, have been looked through by Dr. Hooker and Prof.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced

Excerpt from The Principles of Biology, Vol. 1 The System of Philosophy now in course of publication by Mr. Herbert spencer begins with a volume of First Princi

Excerpt from The Principles of Biology, Vol. 1 of 2 1. OF the four chief elements which, in various com binations, make up living bodies, three are gaseous' und

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typ