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THE

PROBLEM OF HUMAN LIFE:

EMBRACING THE

"EVOLUTION OF SOUND" AND "EVOLUTION EVOLVED,"

WITH

A REVIEW OF THE SIX GREAT MODERN SCIENTISTS,

nslRlVIN, HUXLEY, TYNDALL, HA ECKEL,
HELMHOLTZ, AND MAYER.

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DEDICATION.

To the Reader of this book, who may conscientiously esire to arrive at the Truth, and nothing but the Truth, conerning the several matters herein discussed, the following ages are affectionately inscribed by THE AUTHOR,

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