Referring to this subject, Professor Parkes, in his “Practical Hygiene,” states that scarlet fever has appeared to get into milk from the cuticle or throat discharges of persons affected with scarlet fever who were employed in the dairy while ill or convalescent. Remarkable cases of this kind have already been reported, and the fact that another zymotic disease—viz., enteric or typhoid fever—has been spread widely through the medium of milk, only serves to increase the importance of the subject in a sanitary point of view. It is well ascertained, however, that enteric fever has been conveyed in the foul water used in diluting milk—a double evil being thus inflicted on unwary purchasers. At about the same time as the scarlatina outbreak my attention was again directed to milk as a probable source of disease by a leading practitioner, who gave me the particulars of a very interesting series of cases of dysentery, attributed on apparently sufficient grounds to the use of milk from diseased cows; and of a further series of cases of diarrhæa, attributed to some change in the character of milk supposed to depend on the food on which the cows were being fed. The information came too late to admit of an investigation of the subject, but the facts deserve to be put on record for future guidance. In the first set of cases, seven in number, the symptoms were generally of a severe character. Three of the patients were young children, and the other four adults. The child first attacked, aged 2½ years, died after seventeen days’ illness. The dysenteric symptoms were sharp and constant, and marked on the first evening by a strong convulsion. The little patient sank, worn out by incessant tenesmus and exhausted brain-power. The body temperature was high throughout. This was the only fatal case. The second case was that of the child’s nurse. She was sent home showing signs of fever, and was ill a long time. In the third case the child, aged six years, had dysenteric straining of almost pure blood. There was little constitutional disturbance, and the attack soon yielded to treatment. The fourth case was that of a middle-aged gentleman attacked with diarrhæa, which assumed a dysenteric character, as many as twenty-five motions being passed in a day. The attack, which left marked debility; lasted ten days. The next case was that of an old nurse, who, ridiculing the idea of the milk being the cause of illness, drank all that was left after tea one day, and was rewarded with a violent diarrhæa that lasted a whole week. Another case was that of a child (who, however, was teething, and) who, after partaking of milk from the same source, suffered during six or seven days under a severe dysenteric attack. The seventh case was that of a lady, who after some days of bowel irritation, was prostrated with acute dysentery which was long in yielding and left great debility.