Illustrated Catalogue Of Magic Lanterns (after November 1889, probably 1890)

MCINTOSH BATTERY AND OPTICAL CO., CHICAGO, ILL. C. S. A. 199 451 Peltiers electroscope 452 Thomson’s replenishes 453 Marey’s modification ot Lippman’s electrometer 454 Dewar’s modification ot Lippman’s electrometer 455 Halley’s first magnetic map. Date 1700 456 J a b 1 oc hkoff ’ s electric candle and lantern 457 Jablochkoff’s electric candle, arrangement for holding the candle 458 Jablochkoff’s electric candle,diagram ot lamp, machine and shunt 459 J a b 1 o chkofl’s electric candle, the automatic i shunt 460 Grammes portable elec- | tro-magnetic machine | with locomotive Maynetic Carves. 461 Magnetic curves ol bar j magnet 462 Magnetic curves ot horse- j shoe magnet j 463 Magnetic lines of torceol single pole 464 Curves ot attraction ot two magnets 465 Curves ot repulsion ot two magnets 466 Two parallel magnets at- tracting 467 Two parallel magnets re- pelling 468 Lines ot force ot dissimi- lar poles 469 Lines ot force of similar poles 470 Horizontal section of electro-magnet 471 Lilies of force of electro- magnet 472 Action of magnetic field on a small magnet 473 Circular lines of force round a galvanic current 474 Lines of force of current in horizontal wire 475 Magnetic field ot a looped conductor 476 Yield of two parallel at- tracting currents 477 Field of two parallel re- pelling currents 478 Attraction of two parallel horizontal currents 479 Repulsion of two opposed parallel currents 480 Magnetic field of oblique currents 481 Field of horizontal and vertical currents 482 Lines of force of current deflecting a needle 483 Stable position of needle near vertical currents 484 Neutral position of nee- dle near vertical current 485 Unstable position of needle near vertical cur- rent 486 Field of force ot a gal- vanometer 487 Field of magnetic needle in a circuit 488 Field of magnetic attract- ing current 489 Attraction of North pole Into a simple circuit 490 Repulsion of South pole out of a simple circuit 491 Mutual rotation of cur- rent and magnet pole 492 Spiral field of magnet rotated by current run- ning through it 493 Converse spiral field of south pole rotated by current running through it Sound. 494 Propagation of a pulse or wave experimentally shown 495 Propagation of sound from a bell to the ear 496 Bell struck in vacuum 497 Propagation of a pulse or wave in a tube 498 Speaking-tube mouth- piece and whistle 499 The invisible woman 500 The horn of Alexander 501 Speaking trumpet in the merchant service 502 Ear trumpets 503 Stethoscope (Konlng’s). Ganot, 187,188 504 Refit ction of sound, dia- gram. Ganot, 185 505 Reflection ot sound. Echo 506 Reflec ion of sound 507 Reflection of sound by an elliptical roof 508 Echo with seven repeti- tions 509 Variation of echoes 510 Refraction of sound 511 Diagram of refraction by a sound lens 512 Experiment to ascertain the velocity of sound in air 513 Experiment to ascertain the velocity of sound In 514 Gyroscope producing se- ries of taps or musical sounds 515 Savart’s toothed wheel experiment 516 Savart’s apparatus for producing low tones 517 Rocking fire-shovel ex- periment 518 Trevelyan’s rocker 519 Seebeck’s syren 520 Disc of Seebeck’s syren with nine pipes 521 Musical sound produced by tuning fork 522 Simple method of show- ing vibration of tuning fork 523 Graphic method of regis- tering vibrations of a | tuning fork 524 Llssajous’ method of j showing vibrations of a tuning fork on a screen 525 Diagram of sound waves 1 produced by tuning fork 526 Syren of Cagniard de la Tour 527 Syren section 528 Helmholtz’s double syren 529 Experiment showing the transmission of sounds by liquids 530 Arrangements for sound- ing a pipe In a liquid 531 Sonometer 532 Weber’s wave canal 533 Vibrations and nodes in a string shown by damp- ing the center 534 Vibrations and nodes in a string shown by damp- ing one-third 535 Vibrations and nodes in a string shown by damp- ing one-fourth 536 Vibrations and nodes in a string shown by damp- ing one-fifth 537 M e 1 d e ’ s experiment. String attached to tun- ing fork 538 Vibrations and nodes produced by string in Melde's experiment 539 Melde’s experiment with the strain on the string varied 540 Young’s figures of vibra- tions of wires 541 Transverse vibrations of a rod fixed at both ends. 542 Transverse vibration of a rod fixed at one end 543 Kaleidophone 544 Pendulum vibrating in two directions 545 Figures produced by the kaleidophone 546 Diagram of vibrations o. a wooden ruler 547 Claque-bois 548 Glass harmonicon 549 Vibrations of a tuning fork 550 Chladni’s sand figures, method ot showing vibrations of square plate 551 Sand figures on four square plates held in the center 552 Sand figures on four square plates held not in the center 553 Three figures on square plates obtained with sand and gum 554 Three figures on square plates with sand and lycopodium powder 555 Sand figures on square plates 556 Sand figures on plates of of various forms 557 Sand figures on mem- brane, produced by vibration of the air. Ganot. 227 558 Sand figures on mem- branes 559 Diagram of vibration ot be" „ , 560 Proof of vibration of glass bell 561 Vibrations of a metal clock bell 562 M e 1 d e ’ s experiment showing vibratio.i of liquid molecules 563 Faraday’s experiment, vibrations of water im- pressed on a layer of sand 564 Longitudinal vibration of of a rod