An experimental analysis of the origin of blood and vascular endothelium: 1. The origin of blood and vascular endothelium in embryos without a circulation of the blood and in the normal embryo. Forty-nine figures. 2. A study of wandering mesenchymal cells on the living yolk-sac and their developmental products; chromatophores, vascular endothelium and blood cells
Stockard, Charles Rupert, 1879-1939