Embryos after Romanes as “Evidences from comparative embryology” in a section on “Descent with change” in William C. Beaver’s The Science of Biology, 4th edition (1952).
Featured on PDR in the essay Copying Pictures, Evidencing Evolution
Copying — unoriginal, dull, and derivative by definition — can be creative, contested, and consequential in its effects. Nick Hopwood tracks Haeckel’s embryos, some of the most controversial pictures in the history of science, and explores how copying put them among the most widely seen.