Replying to @JEM_411 ask and you shall receive! Preformationism!! Sources: Ford, Brian J. (1991) The Leeuwenhoek Legacy -Glick, Bruce (1991) Historical perspective: the bursa of Fabricius and its influence on B-cell development, past and present -Cobb, Matthew (2006) Generation: The Seventeenth-Century Scientists Who Unraveled the Secrets of S•x, Life, and Growth -Fearing, Franklin (1929) Jan Swammerdam: A Study in the History of Comparative and Physiological Psychology of the 17th Century -Hartsoeker, Nicolaas (1694) Essai de Dioptrique -Gee, Henry (2004) Jacob's Ladder: The History of the Human Genome #history #misinformation #disinformation #historyharlot #preformationism #preformation #homunculus