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November 19, 1887

PATHOLOGICAL HEREDITY AND CONGENITAL ABNORMALITIES OF THE TEETH.Read before Section on Dental and Oral Surgery, at the Thirty-Eighth Annual Meeting of the American Medical Association, June, 1887.

JAMA. 1887;IX(21):641-643. doi:10.1001/jama.1887.02400200001001

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Heredity is that force by which every organism, plant or animal is formed in the likeness of, and is the counterpart, more or less exact, of the parent forms which produced it. Its external form and features, its internal organs and tissues, are copied after the type of the species to which the organs belong, and all its distinguishing peculiarities are characteristic of that species. There is a law of type which governs the evolution of every molecule, the placing of that molecule in the building of tissues, the arrangement of those tissues in the growth and position of organs in the construction of the individual, so that it shall be a typical, representative organism. That law is heredity.

It is not in the field of the normal physiological operations of this law, that we wish to study it at this time; but rather to inquire briefly into its work

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