Hybridity in Animals and Plants, Considered in Reference to the Question of the Unity of the Human Species

New Haven: B. L. Hamlen, Printer to Yale College, 1847. Hardly of maritime interest, but it caught my eye, so I bought it for you. Morton was a physician who, typical of his era, dignified notions of white supremacy with cranial measurements that suggested the superiority of white Europeans over other races. The final two pages of the pamphlet have a long manuscript note that, well. "It is asserted that the first cross of negro & white race is always sterile (together) - but that any deviation from pure half breed in either parent causes the rule to fail when the mulatto is brought together - so that the mulatto will breed again with either of the parent races without difficulty." Uh-huh. This text was extracted from "The American Journal of Science and Arts," vol. III, 1847. It is stab sewn, in plain brown wrappers, and is foxed throughout. The front wrap bears the author's inscription to Samuel Powel, a wealthy businessman and amateur naturalist who may be responsible for the manuscript addition. 22.5 cm. 23 pp. Hardly of maritime interest, but it caught my eye, so I bought it for you. Morton was a physician who, typical of his era, digni.…