45 pages matching semen in this book
Results 1-3 of 45
What people are saying - Write a review
We haven't found any reviews in the usual places.
Harvey and the Breakaway from the Theories
The Initial Stages of the Preformation Theory
11 other sections not shown
accepted amongst animalcules animalculist animals appeared Aristotle aspects assumed assumption Baer believed Bentley Glass biology body Bonnet Buffon cell theory Chap Charles Bonnet chick cicatricula claimed completely conception Descartes described discoveries discussed eggs eighteenth century elements embryo embryology enquiries epigenesis evidence experiments explain facts female fertilisation foetus force formation Generatione germ Graafian follicles gradual growth Haller Harvey Harvey's hybrids idea inheritance interest investigations kind Leeuwenhoek living things male matter Maupertuis microscopic naturalists nature Needham observations offspring organisation organs origin outlook ovaries oviparous ovum parents phenomena philosophers plant sexuality plants polydactyly preformation theory preformationists Prevost and Dumas primordium produced published Reaumur recognised regarded regeneration reproduction result scientific scientists seed seemed seen semen seminal seventeenth and eighteenth seventeenth century sexual sexual reproduction similar Spallanzani species spermatozoa structure suggested Swammerdam theoretical uterus version of preformation vesicles vital particles viviparous Wolff yolk