Note B — Chapter IV · THE ONE-CELLED ANIMALS OR PROTOZOA
Reading edition
"The Biological Problem of To-Day, Preformation or Epigenesis," by Professor O. Hertwig. Translated by P. C. Mitchell. Heinemann, 1896.
Reading edition
"The Biological Problem of To-Day, Preformation or Epigenesis," by Professor O. Hertwig. Translated by P. C. Mitchell. Heinemann, 1896.