Nobody will care to support "Pangenesis" as a theory of generation.
"The Faith of the Millions (2nd series)"
George Tyrrell
In short, viewing the internal secretions as determinants, by their quantitative variations, of a host of biologic phenomena furnishes a concrete and detailed foundation for Darwin's theory of Pangenesis.
"The Glands Regulating Personality"
Louis Berman, M.D.
It should be noted that the "gemmules" which Darwin assumed in his provisional hypothesis of Pangenesis to be given off by the various cells of the body, were supposed to be of innumerable unlike kinds, whereas in Spencer's argument "the implication everywhere is that the physiological units are all of one kind."
"Herbert Spencer"
J. Arthur Thomson