Humanly Possible; a Biologist's Notes on the Future of Mankind

abnormal already animalcules animals antispontanists appeared artificial atoms become believe biogenesis biologists biology body born brain capable cell century Chauchard chemical child chimpanzee chro chromo chromosome theory chromosomes Claude Bernard death discovery eelworms elements embryo everything existence experimental experiments face fact father feel ferments flask frog fruit flies genes genetics germs give hereditary material heredity history of genetics history of science human race idea identical twins individual infusion initiate mitosis insects Jérôme Lejeune kind least letters malformed babies mathematics matter means Mendel Mendelian ment microbes mind mitosis molecules moral mosome murder mutations naturalist nature nucleic acids opinion Oskar Hertwig ovum parthenogenesis particles Pasteur person philosophical physical plants possible Pouchet problem produced regard scientific scientists seeds society species spermatozoon spontaneous spontanists sterile substance teleology thought tion tissues traits transplants truth woman wrote young