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"In studying the phenomena of animals and vegetables, the diligent inquirer must readily perceive the wide difference between their structures and those of the most regularly formed minerals. In all such structures he cannot help observing a diversity of organs, arranged and proportioned on a definite plan, mutually dependent, mutually subservient, and all co-operating for mutual preservation. In examining them minutely, he must also acknowledge a species of mechanism, of which the most ingenious mechanic can form no adequate conception and besides this mechanism, a great variety of chemical combinations, that not only indicate a species of chemistry unknown to man, but which evidently imply a species of chemists whose modes of operation are equally beyond his powers to imitate and his powers to comprehend"--Preface. (PsycINFO Database Record (c) 2009 APA, all rights reserved).

Evolution (Biology)