Author: Spencer, Herbert
Title: The Factors of Organic Evolution
Description: New York, D. Appleton and Company, 1887. 1st Edition, 8vo - over 7¾" - 9¾" tall. Hard Cover. 1st edition NY 1887. These are two parts of an essay which were originally published in 1886 the publication "The Nineteen Century". 76 pages. Burgundy cloth. Very Good.

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