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This volume is part of the collected 'Works' of Herbert Spencer, a highly influential English philosopher, biologist, sociologist, and classical liberal political theorist. Spencer developed an all-embracing conception of evolution as the progressive development of the physical world, biological organisms, human mind, and human culture and society. He is best known for the expression ’survival of the fittest’, which he coined in 'Principles of Biology' (1864) after reading Charles Darwin’s 'On the Origin of Species'. Spencer’s work contributed to a comprehensive theory of evolution, applying evolutionary principles to diverse fields. Readers interested in the history of sociological thought, political theory, and the development of evolutionary ideas will find enduring value in this collection.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 from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.