The Biological Problem of To-day: Preformation Or Epigenesis?. The Basis of a Theory of Organic Development Oscar Hertwig, Sir P. Chalmers MitchellE-book0,99 €
The Prolongation of Life: Optimistic Studies. Enriched edition. Unlocking the Secrets of Longevity: A Scientific Journey Élie Metchnikoff, Sir P. Chalmers Mitchell, Harriet GainsboroughE-book1,99 €
