neglected, are of a cadaverous aspect, and suffer proportionately in their health. Medical papers have been written in this country and on the continent to show that the exposure of workmen to putrid emanations in the employment of sewer cleansing has no effect on the general health; and when the employers of the labourers engaged in such occupations are questioned on the subject, their general reply is, that their men “have nothing the matter with them:” yet when the _class_ of men who have been engaged in the work during any length of time are assembled; when they are compared with classes of men of the same age and country, and of the like periods of service in other employments free from such emanations, or still more when they are compared with men of the same age coming from the purer atmosphere of a rural district, the fallacy is visible in the class, in their more pallid and shrunken aspect—the evidence of languid circulation and reduced “tone,” and even of vitality—and there is then little doubt of the approximation given me by an engineer who has observed different classes of workmen being correct, that employment under such a mephitic influence as that in question ordinarily entails a loss of at least one-third of the natural duration of life and working ability. The usual comment of the employers on the admitted facts of the ill-health and general brevity of life of the inferior workmen engaged in such occupations is, “But they drink—they are a drunken set;” and such appears frequently, yet by no means invariably, to be the case. On further examination it appears that the exposure to the emanations is productive of nervous depression, which is constantly urged by the workmen as necessitating the stimulus of spirituous or fermented liquors. The inference that the whole of the effects are ascribable to the habitual indulgence in such stimuli is rebutted by the facts elicited on examination of other classes of workmen who indulge as much or more, but who nevertheless enjoy better health, and a much greater average duration of life. It is apt to be overlooked that the weakly rarely engage in such occupations, or soon quit them; and that, in general, the men are of the most robust classes, and have high wages and rather short hours of work, as well as stimulating food. A French physician, M. Labarraque, states in respect to the tanners, that, notwithstanding the constant exposure to the emanations from putrid fermentations, it has not been “remarked” of the workmen of this class that they are more subject to illness than others. A tanner, in a manual written for the use of the trade, without admitting the correctness of this statement, observes: “Whatever may be the opinion of M. Labarraque on this point, we do not hesitate to declare the fact that this species of labour cannot be borne by weakly, scrofulous, or lymphatic subjects.”[3]