Published online by Cambridge University Press: 15 September 2014
The present paper has a three-fold object:—(1) to give a history of the theories of heredity which have been proposed by so many naturalists, with an appreciation of these in the light of recent advances; (2) to gather together the various contributions which have made the modern restatement possible; (3) to enter a protest against what the author believes to be the extreme position so firmly maintained by Weismann, to whom, however, much of the recent progress has been. due.