As the sense of smell is so intimately connected with that of taste, it is not surprising that an excessively bad odour should excite retching or vomiting in some persons, quite as readily as the thought of revolting food does; and that, as a further consequence, a moderately offensive odour should cause the various expressive movements of disgust. The tendency to retch from a fetid odour is immediately strengthened in a curious manner by some degree of habit, though soon lost by longer familiarity with the cause of offence and by voluntary restraint. For instance, I wished to clean the skeleton of a bird, which had not been sufficiently macerated, and the smell made my servant and myself (we not having had much experience in such work) retch so violently, that we were compelled to desist. During the previous days I had examined some other skeletons, which smelt slightly; yet the odour did not in the least affect me, but, subsequently for several days, whenever I handled these same skeletons, they made me retch. From the answers received from my correspondents it appears that the various movements, which have now been described as expressing contempt and disgust, prevail throughout a large part of the world. Dr. Rothrock, for instance, answers with a decided affirmative with respect to certain wild Indian tribes of North America. Crantz says that when a Greenlander denies anything with contempt or horror he turns up his nose, and gives a slight sound through it.[1109] Mr. Scott has sent me a graphic description of the face of a young Hindoo at the sight of castor-oil, which he was compelled occasionally to take. Mr. Scott has also seen the same expression on the faces of high-caste natives who have approached close to some defiling object. Mr. Bridges says that the Fuegians “express contempt by shooting out the lips and hissing through them, and by turning up the nose.” The tendency either to snort through the nose, or to make a noise expressed by _ugh_ or _ach_, is noticed by several of my correspondents. Spitting seems an almost universal sign of contempt or disgust; and spitting obviously represents the rejection of anything offensive from the mouth. Shakspeare makes the Duke of Norfolk say, “I spit at him—call him a slanderous coward and a villain.” So, again, Falstaff says, “Tell thee what, Hal,—if I tell thee a lie, spit in my face.” Leichhardt remarks that the Australians “interrupted their speeches by spitting, and uttering a noise like pooh! pooh! apparently expressive of their disgust.” And Captain Burton speaks of certain negroes “spitting with disgust upon the ground.” Captain Speedy informs me that this is likewise the case with the Abyssinians. Mr. Geach says that with the Malays of Malacca the expression of disgust “answers to spitting from the mouth;” and with the Fuegians, according to Mr. Bridges “to spit at one is the highest mark of contempt.”[1110]