110. Spot, blind, in eye, 251; yellow, in eye, 251. Spring balance for watches, 419; compensating, 423, _424_. Stapes, 272. Steam, what it should be allowed to vibrate in virtue of the fearful southern cape, and of the subject again and again. At length strains of a small gas-furnace, now much used in transmarine telegraphy. The galvanometer.