Jelly-Fish, Star-Fish, and Sea-Urchins: Being a Research on Primitive Nervous Systems

George John Romanes, a Canadian-Scots evolutionary biologist, and physiologist in this book focus on the primitive nervous system on the physiology of the Medusæ and Echinodermata. This book covers some essential parts in describing the morphology, development, and classification of the Medusæ, fundamental experiments about the study, and more. It contains illustrations geared to aid better understanding.