Describes the origins of epigenesis, the theory that organisms generate themselves under the guidance of a formative drive, looking at how it came to replace the reigning model of preformation. Discus
Why do living things and physical phenomena take the form they do? D'Arcy Thompson's classic On Growth and Form looks at the way things grow and the shapes they take. Analysing biological processes i
Here is a critical account of the experimental work of German biologist and Nobel laureate Hans Spemann, one of the founders of experimental embryology. The author, a distinguished developmental biol
