The subject of typhoid fever in infancy is one which has been much discussed, recently and in former years, but it is brought up again for new study because of the great uncertainty which still exists in the minds of many in regard to its occurrence, the indefiniteness of most of the literature on the subject, and the very great importance which the exact knowledge of typhoid fever must always have in all its different phases. In medical literature, recent and old, some authorities of high repute speak of having seen scores of cases in early infancy and childhood and consider the disease not uncommon. The other extreme is represented by Northrup, of New York, who is exceedingly skeptical of its occurrence in infancy. His belief is based on his experience in the last twelve years at the New York Foundling Asylum where 1,800 children constantly under observation living inside