_Introduction_, p. 634.
Results of the three foregoing essays: denial of a phyletic vital
force, 634. Application of these results to inductive conclusions with
reference to the organic world in general, 636. The assumption of such
a force is opposed to the fundamental laws of natural science, 637. The
“vital force” of the older natural philosopher, 640. Why was the latter
abandoned? Commencement of a mechanical theory of life, 642.