Essays Upon Heredity and Kindred Biological Problems, Volume 2

adaptation Amen Corner amphimixis ancestral plasms animals appear arrangement cell-body chromatin chromatosomes Clarendon Press conjugation contain Crustacea double embryogeny English essay existence explain fact female fission fusion germ-cells germ-plasm germinal vesicle Greek halves Hence HENRY FROWDE hereditary substance hereditary tendencies heredity Hertwig idioplasm increase individual Infusoria Introduction and Notes latter M.A. Crown 8vo M.A. Extra fcap M.A. Second Edition M.A. Third Edition male maternal mature Maupas means Metazoa micronucleus mingling mother-cell musical sense natural selection nuclear loops nuclear rods nuclear substance nucleus number of idants number of ids observations occur Ophiurid original ovum Oxford Paramaecium parthenogenetic parthenogenetic eggs phenomena polar bodies polar division possess possible predispositions Protozoa purely parthenogenetic reducing division regard rejuvenescence rendered reproductive nuclei require fertilization segmentation nucleus sexual cells sexual reproduction significance single species sperm-cells spermatozoa spindle stiff covers take place theory tion Translated variety vital W. W. SKEAT