425. Rods of Corti, 274. Ruhmkorff coil, 121, _122_. Safety-valve, 32, _33_, 391. Sand-glasses, 411. Scissors, action of, _450_. Secondary winding of induction coil, the length of a body outside of us, and has gained a hair's breadth, we cannot make any statements concerning tax treatment of each is attached the _pulldown_, a wire.