Assertion: chick embryo | /r/HasProperty | described by pander
Facets:
Source sentences:
text: In his 1849 paper "On the Anatomy and Affinities of the Family of the Medusae," Huxley noted that the two layers of cells he saw in the adult jellyfish related to each other the same way as the germ layers in chick embryos described by Pander.