On the best-known New York newspapers, see: H.Hapgood and A.B.Maurice, "The Great Newspapers of the United States; the New York Newspapers," in "The Bookman", vols.

XIV and XV (1902).

On the typewriter, see Charles Edward Weller, "The Early History of the Typewriter" (1918).

On the camera, Paul Lewis Anderson, "The Story of Photography" (1918) in "The Mentor", vol.vi, no.

19.; and on the motion picture, Colin N.Bennett, "The Handbook of Kinematography"; "The History, Theory and Practice of Motion Photography and Projection", London: "Kinematograph Weekly" (1911).
CHAPTER VII For information on the subject of rubber and the life of Charles Goodyear, see: H.Wickham, "On the Plantation, Cultivation and Curing of Para Indian Rubber", London (1908); Francis Ernest Lloyd, "Guayule, a Rubber Plant of the Chihuahuan Desert", Washington (1911), Carnegie Institute publication no.