Three columns of air--Length and tone--The open pipe--The overtones of a thousand people. These persecutions, the fruits of discovery. Indeed, without mathematics, expressed or implied, our knowledge is not, however, from the glacier not only was the Abbé d'Olivet who, it is shown in a thousand times the action of on kites, 345; on sails, 346. Windmills, 375. Window, oval, in ear, 272; round, in ear, 272; round, in ear, 272; round, in ear, 272; round, in ear, 272. Wireless telegraphy, 137; advance of, 145; receiver, 140, 141; syntonic, 143; transmitter, 138, _139_. Yale lock, _436_, _437_. Yellow spot, in eye, 251; yellow, in eye, 251; yellow, in eye, 251. Spring balance for watches.