Abstract
THE New York Times published a story in February, 1955, stating that bronchogenic carcinoma never develops in the Yemen Jews.1 They smoke a great deal of strong tobacco but pass the smoke through water in a special type of pipe.One wonders what becomes of the smoke after it leaves the proximal end of American cigarettes. It passes directly, of course, into the mouth. Hansel2 has described the effects of tobacco smoking on the upper respiratory tract. Proetz3 has studied the irritating effects on the pharyngeal mucosa and has demonstrated tar deposit in the noses of experimental animals. So-called smoker's . . .