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New York, February 5th 1885. 18 West 21st Street New York City.
Justin Winsor Esq.
Librarian of the Harvard College Library, Cambridge Mass..
Sir,
Agreeable to the request of the distinguished professor J.M. Peirce of the Department of Mathematics in the Harvard College, which you kindly transmitted me by your letter of the Febru- ary 2nd I forward you to-day by mail a copy of my work on Linear algebra
Very respectfully yours
Hussein Tevfik