New York, Nov. 1, 1902.
To the Editor:
—At the last meeting of the American Laryngological Association, Dr. E. Fletcher Ingals of Chicago read a paper which you published in The Journal of June 28, 1902, concerning the immunization cure of hay fever. In this paper there are so many statements that are at variance with facts and so many misrepresentations in regard to myself, that I am obliged to ask you to publish this letter.Ingals writes: "Dr. Curtis stated that by trying various substances he found that if a patient was rendered immune to one, he was thereby also made immune to some of the others. Curtis employed only the liquor ambrosia prepared by Fraser & Co., the constituents of which are not given," and on page 1686, "Fraser's liquor ambrosia is a proprietary preparation, the constituents of which are not known to the profession; therefore, careful physicians