1110 



Alphabetical Name and Subject-matter Index. 



Page 



Henniger, Kft'usiometer . . . .411 

 Heron's Ball . . 334. 381, 382, 404 



explained 366 



Fountain 382 



- Rotating ball (sphere) 407, 630 

 Herschel, Solar prism 543 



- Telescope demonstrated . .531 

 Hertz, Electric power rays . .1039 

 Hertzian \Vave transmitter . .1041 



- waves, wave machine . . . 412 

 Hesehus, Spring balance (dyna- 

 mometer) 310 



Hessian crucibles 218 



Heumann, Striation apparatus . 364 

 Hexano gas generator see vol. I. 

 Heydweiller, Mirror electrometer 844 

 Heylandt, Geneiating liquid air 610 

 High-capacity influence machines 



822, 823 



frequency and tension appa- 



ratus (Tesla's) . . .10301035 



- apparatus for Arsonvali- 

 sation and other therapeu- 

 tical purposes, see special 

 list 



- pressure iron boiler .... 634 



- tension battery 811 



rheostat 924 



- transformerl031, 1032, 1038 



-vacuum pumps 



390394, 397399 



- voltage accumulator battery 856 

 Hillig, Electrolytic demonstration 



apparatus 945 



- Pendulum apparatus . . . 296 



Wave machine 413 



Hipp's Chronoscope 248 



Hittorff's Tube 1016 



Hoffmann, Diffraction apparatus 



for determining wave length 548 

 Hofler, Rail apparatus (inclined 



plane) 253, 258 



Hohnann, Faraday's second law 944 



- Combination of hydrogen 



and oxygen 945 



- Pocket spectroscope . . . 511 



Vapour density 614 



- Voltameter 942 



Hofrnann-Janssen, Spectroscope 509 

 Hoisting and transporting ma- 

 chines (models) . . .328332 



devices for maps, plans, see 



vol. I. 



jack 330 



Holder for candle .... 812, 813 



- for carrying crystal and gyp- 



sum plates 646 



- for conductivity vessel . . 930 



- for fluorescent cubes . . . 518 



- for Franklin electrode . . . 822 



for porcelain dishes and cru- 



cibles 217 



- for retorts 203 



with, terminals 996 



Hollow balls 812 



- ball for electrometer . 802, 812 



copper ring with tube . . 1009 

 _ cube 230 



- of crystal glass .... 612 



- cylinder for balloon experi- 



ments 368 



- cylinder for showing free 



electricity 807 



- cylinder of sheet brass . . KO9 



- hemisphere and plane plate Jin 



- iron sphere with closing scnu lioo 



lenses *!') 



- polished metal sphere . . . lOi 

 prisms 501, .")(>_' 



- prism after Silbermann . . 491 



- sphere on insulating handle 806 



Page 



Holtz, Demonstration galvano- 

 meters 875 



- Foot or stand clamp 799,866, 1010 



- Influence machines, seeWims- 



hurst machine. . . .819 821 



- Tube 1016 



Hook with cramp 266 



Hook's Gearing 322 



Hooked weights 261, XV 



Hope, Stratification of aqueous 



masses 573 



Hopkin, Experiment on resonance 442 



Horizon 661 



Horizontal component of terres- 

 trial magnetism 796 



- galvanoscopes 876 884 



- gas engines 629, 630 



- intensity of terrestrial mag- 



netism 796 



- pendulum 768 



- projection apparatus see vol. I. 



Hprizontarium 662 



Hermann. Commutator .... 867 

 Horn with reed 429, 464 



without reed 427, 464 



Horse-hair, longitudinally vibrat- 

 ing 442 



Horseshoe electromagnet. . 950, 973 



- magnets 785, 786 



- magnet with homogeneous 



field 789 



- magnet with induction coil 971 

 Horst'ord. Conducting resistance 



of liquids 929 



Hose unions 207 



Hot water heating model . . . 574 



wire instruments 907 



- instrument, principle 904, 905 

 House and its perspective image 529 



- with tower and lightning 



conductor 836 



Hrabowsky, Tension and accele- 

 ration apparatus .... 257 

 Huber, Boyle's (Mariotte's) law 379 



Hughes, Microphone 1054 



Human beings' breathing . . . 408 



eye, explaining 496 



Hummel-Schuckert Ammeter. . 905 

 Huyghenian construction of pheno- 

 mena in crystals .... 563 



Hydraulic analogon of the Leyden 



jar 837 



bellows 336 



press . . . 334, 337, 338, XV 



ram 334, 353, 354 



Hydririn generator see vol. I. 

 Hydrodynamical explanation of 



current 917 



Hydrogen, bombs for, see vol. I. 

 Hydrometer .... 237, 346, 348 

 Hydrometer for accumulators . 857 



- for showing maximum den- 



sity of water 573 



Hydrostatic apparatus . . 334, 336 



balances 238 



- paradox 341 



Hygrometers .... 652 654, s _'.". 

 Hyperbolical toothed wheels . . 323 

 II ypocycloid formation .... 318 

 llypocycloidal gear system. . .319 



Ilypsoineter 580, 652 



Hypsometric thermometer . . . 578 



I beam with traveller see vol. I. 

 Ice-breaking machine (>ol 



- calorimeter 616, 617 



- chopper 214 



evaporating 608 



forming 405 



Page 

 Ice machines 214. HIM i 



- melting ~>7 1 



- producing by evaporation i>o7,(>os 

 Igniting ether 813, s-_'i; 



gases s _'."> 



- the vapour of alcohol . . . 'Jsr, 

 Illuminating gas, testing appa- 

 ratus. Ask for quotations. 



- lens .V! 1 .) 



I Humiliation and colour impression 529 



Illusions, optical 5-Js 



Immersion batteries . . . 851. s:>j 



body, indifferent 354 



- tubes :',(!! 



Impact pressure of liquids 353. 354 

 Incandescent gas burner with 



chimney 878 



gas lamp 474 



- lamp 843 



- vapour spectra . . . .512 515 

 Incidence of light, measuring . . 4M; 

 Inclination apparatus 7!>o 



- explained 789. Tim 



Inclined Plane 257, 258, 267, --'(is 



Incomplete journal :ilJ 



Increase of pressure downward- 



338, :::!!i 



of volume when water freezes (>oo 



Indefinite forces 305 



Index, alphabetic 1097 



Indiarubber balloon :ii(i 



- cords 414 



Indicating apparatus .~>.'i7 



- balances 24O 



Indicator cylinder 223 



for resistance thermometers 58(> 



- for resonance vibrations. . 838 



- for specific gravity .... 347 



of direction of field. . . . 79o 



of gases 41o 



of induction, automatic . . 971 



Indices of refraction 48(> 



Indifferent equilibrium . . 273, 274 



immersion body 354 



Individual periodicity of a system 297 

 Indrikson, Thermopile .... 1074 



Induced radioactivity 1027 



Inducing and induced electricity 



804808 

 Induction apparatus with buzzing 



sound 93(> 



with tuning fork inter- 

 rupting 92S 



coils . 974, 978 982, 1058, XV 



and bar magnet . . . U7L' 



and horse-shoe magnet . 97 1 



flat 955 



for calibrating ballistic 

 galvanometers 97*> 



- coils for measuring electro- 



lytic resistances 886 



coils for Thomson's experi 



ment 1058 



- coils with interrupters . .981 



- without interrupter . . 980 



- commutator 981 



currents 971 1013 



- indicator '.'7 1 



measured '''!."> 



- spirals 813, HKi: 



- unipolar 



Inductive effect of discharge shock S2!i 



- repulsion 10081010 



Inequality of surface tension 363. '.Mi, 

 Inertia, demonstration .... L'5 1 



moment 289. --".HI 



- of water 339 



pendulum -"' ' 



- to]> 251 



Influence electricity Sod 



- machines . .' 81(5823. 1072 



machine, model . . . 813, S17 



See also the Subject-matter Index in vol. I. 



