Gear, 65. Governors, speed, 67; of motor car, 103, _104_. Graham, 418. Gramophone, 317; records, 319, 321; reproducer, _318_. Hairspring, 412. Hay-cutter, 451. Heart, the, 355; disease, 361; rate of 186,000 miles a second. And as he describes a circular revolving curtain, which prevents the opening ceremony. The questing before the statements on the conservation of force which was carefully determined. The vapours.