Scope and Contents From the Collection: The William Pitt Mason Papers (MC 1) span the years 1877 to 1924, with the bulk of the material falling into the period 1885 to 1915. The papers consist primarily of letterpress books of scientific and business correspondence; investigation results and records of water analysis; bibliographical notations; notes by RPI students on experiments and water investigation; and published articles written by Mason. The majority of the manuscripts deal with Mason’s...