persons, particularly in children 2 or 3 years old, who have not lived very long on a vegetable diet ; who have, in fact, lived on a diet consisting largely of milk. It seems to me that that statement ought not to pass unchallenged.Dr. Claude Smith, Atlanta, Ga. : If this case had been referred to Dr. Siler, what would the commission's reply have been, and in the light of their present knowledge, what would they advise with regard to the handling of pellagra cases? In addition to the question which Dr. MacNeal has asked as to the time of inoculation, will Dr. Francis state the type of inoculations made on this monkey, and the length of time which had elapsed when the lesions appeared?Dr. J. F. Siler, New York: Dr. Smith has asked a diffi¬ cult question; one which it is not possible to answer defi¬ nitely. It is our opinion that pellagra is an infectious dis¬ ease.