Note 21 — Chapter I

There are really two lines to follow in contemporary neo-vitalism: on the one hand, the assertion that pure mechanism is insufficient, which assumes great authority when made by such scientists as Driesch or Reinke, for example; and, on the other hand, the hypotheses which this vitalism superposes on mechanism (the "entelechies" of Driesch, and the "dominants" of Reinke, etc.). Of these two parts, the former is perhaps the more interesting. See the admirable studies of Driesch—Die Lokalisation morphogenetischer Vorgänge, Leipzig, 1899; Die organischen Regulationen, Leipzig, 1901; Naturbegriffe und Natururteile, Leipzig, 1904; Der Vitalismus als Geschichte und als Lehre, Leipzig, 1905; and of Reinke—Die Welt als Tat, Berlin, 1899; Einleitung in die theoretische Biologie, Berlin, 1901; Philosophie der Botanik, Leipzig, 1905.