Front Matter
  Author's Introduction
  I-A Pangenesis: The Nature of Hereditary Characters
  I-B Pangenesis: Prevailing Views on the Bearers of Hereditary Characters
  II-A Intracellular Pangenesis: Cellular Pedigrees
  II-B Intracellular Pangenesis: Panmeristic Cell-Division
  II-C Intracellular Pangenesis: The Functions of the Nuclei
  Fertilization and Hybridization, a paper presented to the Dutch Society of Science 16 May 1903