To the Editor.—With reference to my article on "Vincent's Infection of the Nose" which appeared in the American Journal of Diseases of Children, August, 1928, vol. 36, pp. 352-356, I wish to state that Hubert M. Jay reported a case of Vincent's infection of the sinus in a man, aged 29, with a positive nasal smear. This case report appeared in the "Medical Journal of Australia," Oct. 8, 1927, vol. 2, pp. 513-514.