Stages in the development of Frog's spawn. Rare Books Keywords: Embryology; Jan Swammerdam ※Wellcome Collection gallery (2018-04-03): https://wellcomecollection.org/works/wvk2xbcu CC-BY-4.0

Stages in the development of Frog's spawn. Rare Books Keywords: Embryology; Jan Swammerdam ※Wellcome Collection gallery (2018-04-03): https://wellcomecollection.org/works/wvk2xbcu CC-BY-4.0

Stages in the development of Frog's spawn. Rare Books Keywords: Embryology; Jan Swammerdam
カエルの発達段階
※Wellcome Collection gallery (2018-04-03): https://wellcomecollection.org/works/wvk2xbcu CC-BY-4.0