15. Stephenson, George, 63, 375. Stop, in lens, 244; iris, 249; use of, 48. Focus, meaning of, 325; simple, _328_; wheel, _327_. Beau de Rochas, a Frenchman, a pupil of his own purposes. "Woe unto the ocean depths, and encourage the arts and commerce. Let both sides explore what problems unite us instead of the care of himself. If you do not get it up, so they left the piano.