LIST OF ILLUSTRATIONS ON WOOD. xxxi 



FIG - PACK 



415. Indicator of Ga'rnier's electric regulator 634 



416. Telegraphic connection of the regulating clock with the indicators . . 635 



417. Froment's electric regulator : the indicator 636 



418. Br^guet's illuminated clock 638 



419. V elite's electric clock 640 



420. Froment's electric clock 640 



421. Robert Houdin's electric clock 642 



422. Hipp's electric clock : outside view 644 



423. Details of the regulating and distributing mechanism 644 



424. Wheatstone's chronoscope 648 



425. Bourbouze's electro-motive machine 653 



426. Froment's electro-motor with continuous rotation 655 



427. Froment's electro-motor : the action of the currents upon the armatures 656 



428. Distribution of Froment's electro-motor 656 



429. Chenot's electric sorter 658 



430. Archard's electric brake : mechanism for throwing out of gear . . . 659 



431. Pacinotti's machine . . . . " 661 



432. Pacinotti's machine (plan) 662 



433. Course of the current in Pacinotti's machine 663 



434. Alliance magneto-electric machine 664 



435. Gramme Armature 665 



436. Gramme machine for metallic precipitations 666 



437. Gramme machine for electric light . 667 



438. Gramme machine for electric light (latest form) 669 



439 and 440. End elevation and longitudinal section of dynamo-electric light 



machine 670 



441. Duboscq's regulator for the electric light 677 



442. Foucault's regulator 677 



443. Serrin's regulator 678 



444. Electric light apparatus in the lighthouses of the Heve ..... 681 



445. The electric light applied to works at night 685 



446. Dumas and Benoit's' electric lamp for miners 690 



447. Electro-magnetic apparatus for the miner's lamp 690 



448. Bichromate of potash battery for blasting mines 694 



449. Statham's fuse for exploding mines 695 



450. Chambers of mines 695 



451. Magnetic exploder for blasting mines Breguet's system 697 



452. Treve's lantern for night telegraphy in the navy 698. 



453. Explosion of torpedoes by electricity ; General Chazal's system of 



defence for ports and coasts 699 



454. Simple apparatus for electro-plating 705 



455. Compound apparatus for electro-plating 706 



456. Reproduction of a Medal by electro-typing : intaglio Mould and Medal 



reproduced in relief 707 



457. Arrangement of the mould for electro-typing objects in the round . . 710 



458. A vase reproduced in electrotype 710 



459. Compound apparatus for electro -silver ing 712 



460. Compound apparatus for gold and silver electro-plating 713 



