![An external file that holds a picture, illustration, etc., usually as some form of binary object. The name of referred object is rmmj-7-2-e0017-g003.gif](images\rmmj-7-2-e0017-g003.jpg)
Figure 3.
Nicolaas Hartsoeker.
Sketch of a homunculus enclosed in a human spermatozoon, 1694, from Essai de Dioptrique, Paris. Public domain via Wikimedia Commons.
Figure 3.
Nicolaas Hartsoeker.
Sketch of a homunculus enclosed in a human spermatozoon, 1694, from Essai de Dioptrique, Paris. Public domain via Wikimedia Commons.