I wish to call your attention to the disappearance of certain books from the reading room of Boylston Hall. This reading room is maintained practically by the students of the Division of Chemistry for mutual benefit. Supposing that these books have not been taken by an ordinary, thief, there remains the probability that some man has taken them, in order that he may have the unrestricted use of them. To do this at any time is a disregard of the rights of others which one hopes not to find in this community. To do this in the midst of, examinations, perhaps preventing some man's access to a book which he cannot afford to buy, seems to me additionally reprehensible,--and deserving of an attempt through your columns to reach the "borrower." Very truly yours,   CHARLES R. SANGER. June 6, 1905.