The first column shows 391 deaths by fever; and of these, without hesitation, I would speak as entirely preventable. Under favourable sanitary conditions fever is unknown. The deaths arising from it befall for the most part persons in the prime of life, whose premature removal, in the midst of their vigour and usefulness, is not only a direct weakening of society, but is also, in respect of orphanage and widowhood, a frequent source to the public of indirect detriment and expense. In the second column, swelled by the epidemic visitation of 1849, you will find 902 deaths referred to Asiatic Cholera, and to other kindred diseases. Comparatively few cases of the kind have occurred since Michaelmas, 1849; an overwhelming majority belonged to the summer quarter then terminating, when the Metropolis generally was suffering from the presence of Cholera. I have already had occasion to show you that this frightful pestilence belongs only to localities which, by their general epidemic mortality, have previously been stigmatised as unhealthy; that, over districts otherwise healthy, it migrates without striking a blow; that it may, therefore, with confidence be spoken of as a disease proportionate to removable causes--in other words, as a preventable disease. I cannot pass over these two columns, without begging you to observe what perhaps may be novel to you. If, instead of reckoning the cholera-deaths as belonging solely to the one year in which they happened, you reckon them as belonging to the whole term of years which elapsed between the two visitations of the epidemic, and distribute them equally over that period, so as to form an average--say for fifteen years, you cannot fail to notice how largely, in the long run, the destruction by fever (which is always here) surpasses the fatality of that Eastern disease; so much so, that the average annual mortality by the latter probably does not amount to half the fatality of the former. Nor must it be lost sight of, that if the _deaths_ by typhus double in number those produced by cholera, the list of _persons attacked_ by the former disease, and thereby for a long while incapacitated and suffering, is immeasurably beyond this proportion. Two or three times the number of deaths by cholera would give you the number of seizures, and enable you to estimate all the direct mischief caused by it; while, in regard of typhus, probably for one death there are twenty cases of protracted illness, tardy convalescence, and injured constitution. Not only are the deaths double in number, but each of them indicates an infinitely larger amount of sickness and suffering not immediately productive of death.