Note 132 — THE INDIVIDUAL ORGANISM WITH REGARD TO FORM AND METABOLISM (continued 4)

Arch. Entw. Mech. 21, 22, and 24, 1906–7; see also Doncaster, Phil. Trans. Royal Soc. London, B. 196, 1903. The influence of different temperature upon the organisation of the hybrids is not always quite pure, inasmuch as the paternal and the maternal forms may themselves be changed by this agent. In spite of that there exists an influence of the temperature upon the hybrid as such, at least with regard to certain features of its organisation.