On the other hand, many evolutionists ignore the certainty that there must be a continuum in any real evolutionary process.
This substance is endowed with a generative or transmutative force by virtue of which it passes into a succession of forms. They thus resemble modern evolutionists, since they regard the world with its infinite variety of forms as issuing from a simple mode of matter.
In conclusion, it is noteworthy that though resorting to utterly fanciful hypotheses respecting the order of the development of the world, Anaximander agrees with modern evolutionists in conceiving the heavenly bodies as arising out of an aggregation of diffused matter, and in assigning to organic life an origin in the inorganic materials of the primitive earth (pristine mud).
In spite of the statement that the nature of the organism is the most important factor in variation, the tendency amongst evolutionists has been to take much more account of the influence of external conditions.
3 Neither Lamarck nor Robert Chambers (the now acknowledged author of Vestiges of Creation), though thorough evolutionists, rationally indicated any means whereby, to use the old phrase, " the transmutation of species " could be effected.