Typled letter signed. 1 page, Elkhart, Indiana,to Prof. Edwin Layton. Cover letter describing how first x-ray spectrometer was developed. Attached 2 photographs, 8 x 10 inches, of Brady with first x-ray spectrometer that he made

Typed letter signed. 1 page, London, to Stephen Graham. Rejection letter

Scrapbook. 215 pages, "The New Materialsim" by John Burroughs, Albany New York, John E. Boos

Autographed letter signed. 1.5 pages 1st and 3rd leaves, West Park, New York, to George H. Frost. Letter recounting a trip with President Roosevelt to Yellowstone and commenting on the President’s hunting trips

Autographed manuscript signed. 9.25 pages, no place. Manuscript entitled "The Divine Ship." Handwritten essay with corrections in the author’s hand

Manuscript. 286 pages, 1 bound volume, “Lectures on Metallurgy given by Professor Carlyle Oct. 1909-Feb. 1910 at The Royal School of Mines South Kensington London S.W.” in the hand of Lionel Calvert

Autographed letter signed. 5.25 pages on 2 separate folded sheets; 1st and 3rd leaves on 2nd sheet only, New Canaan, Connecticut, to President Thwing

Autographed letter signed. 2 pages, Cleveland, to Dr. Richardson thanking him for his encouragement and requesting a copy of his book review

Autographed letter signed. 2 pages, New Haven, Connecticut, to Dr McCastline thanking him for his services with a presentation copy of "The History of the Sheffield Scientific School"