[194] There is a callousness in the negro, which strikingly distinguishes him from the whites, though it is possessed in perhaps an equal degree by other races. I borrow from Mr. Van Amringe's _Nat. Hist. of Man_, a few remarks on this subject by Dr. Mosely, in his _Treatise on Tropical Diseases_: "Negroes," says the Doctor, "whatever the cause may be, are devoid of sensibility (physical) to a surprising degree. They are not subject to nervous diseases. They sleep sound in every disease, nor does any mental disturbance ever keep them awake. They bear chirurgical operations much better than white people, and what would be the cause of insupportable pain to a white man, a negro would almost disregard. I have amputated the legs of many negroes, who have held the upper part of the limb themselves." Every southern planter, and every physician of experience in the South, could bear witness to these facts.--H. [195] Thinking that it might not be uninteresting to some of our readers to see the views concerning the negro of another European writer besides Mr. Gobineau, I subjoin the following extract from Mr. Tschudi's _Travels in South America_. Mr. Tschudi is a Swiss naturalist of undoubted reputation, an experienced philosophic observer, and a candid seeker for truth. His opinion is somewhat harsher than would be that of a man who had resided among that class all his life, but it nevertheless contains some valuable truths, and is, at least, curious on account of the source whence it comes.