"The relations of physical agents to the animal economy are infinite."- EDWARDS. "We stand in connection with the universe by a new and hitherto unsuspected recipro cation."-REICHENBACH.
BOSTON:
JOHN P. JEWETT AND COMPANY.
CLEVELAND, OHIO:
JEWETT, PROCTOR & WORTHINGTON.
1856.
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Entered according to Act of Congress, in the year 1852, by
E. C. ROGERS,
In the Clerk's Office of the District Court of the District of Massachusetts