Philadelphia, Feb. 20, 1907.
To the Editor:
—While thanking you for your favorable notice of my "Materia Medica and Therapeutics," sixth edition, I would regard it as only just to me that a misconception on the part of the reviewer should be corrected, and I ask you to publish this explanation in an early issue of The Journal. Unlike other text-books, my work is based on both the United States Pharmacopeia and the British Pharmacopeia, so that it can be used in all parts of the world where these two standards are in force. Unfortunately, the committee of revision did not see its way clear to adopt the English titles of some drugs, like carbolic acid and sulphonal, but authorized "phenol," "hexamethylenamine," etc., instead. A careful examination of my work will show that these drugs are described under both of their official titles, with full explanation given under each heading.