“My occupation brings me into close contact with dairy cattle, and I have therefore been compelled to devote my attention to the diseases afflicting dairy stock, and that there is a large number of dairy cows afflicted with tuberculosis I can affirm; that there has never been any attempt to exterminate the disease is a fact of which I am also cognisant.... I have been told by inspectors of the Bureau of Animal Industry that a much larger percentage of our cows are affected than is the case in England. Indeed, among the thoroughbred Jerseys in the Northern states, twenty per cent. are affected, as I have been told by Professor R. A. McLean, chief of this district from the bureau.” And in his work on “Milk,” this author says: “Diseases may be conveyed by milk taken from an animal suffering from disease, or by milk contaminated in a dairy, or by contact with diseased or affected persons.” These words were written some years ago, and it is probably true that conditions have somewhat improved since that time; but there can be no question that a large number of diseased cattle still exist and supply milk to the various cities—their standard being kept somewhat low by continued in-and-in breeding. And it must not be overlooked, in this connection, that no matter if the animal be perfectly healthy, the milk partakes of the nature and general character and composition of the animal’s body; and while this may not be actually diseased, it is doubtless in a more or less depraved condition—as are practically all domesticated animals, particularly the cow—during the confined period of winter. And the milk, being a secretion, naturally takes on the conditions of the body of the animal—as would any other secretion. Indeed, Professor L. B. Arnold, an excellent authority on all dairy matters, says: “Milk is the scavenger of the cow’s body.” But now suppose we have the best of milk, from perfectly healthy cows, there would still remain several objections to its use. In all conditions of torpor of the liver, or in all dyspeptic conditions, or whenever there is a tendency towards biliousness, milk is sure to cause distress, being unsuited to the organism. Milk contains a large percentage of liquid (upwards of 90 per cent.) to a very small percentage of solid; and while this proportionate percentage is right for the body of the babe, it is not suited for that of the adult. He should eat more solid food, and, if necessary, drink water separately. Milk contains a large percentage of fat, and but a small percentage of proteid and mineral salts, and the adult can usually balance his diet better by leaving out milk and by ingesting a smaller bulk of more nutritious food material, which he is able to assimilate, but which the babe cannot. * * * * *