Alphabetical Name and Subject-matter Index. 



1121 



Page 



Ritchie, Top 957 



De la Rive, Floating current . 968 



- Rotation of electric luminous 



flux 1017 



Rivetting model 306 



Roberval, \\Yih bridge .... 276 



Robinson, Anemometer .... 658 



l!ock crystal 560 



- prisms 500 



- slab 596, 597 



Rock salt lenses 646 



- prisms 596, 646 



slabs 646 



Rocker, Trevelyan's .... 420, 627 

 Rod-shaped thermocouple . . .1061 



Rod with hook 282 



Rods of different materials for 

 thermal conduction experi- 

 ments 639 



Roget's Spiral 969 



Roller, double electrostatic. . . 827 



Rollers on cramps 260 



Rolling cylinder 274 



Roman balance 276 



Rombohedra of calc-spar . . . 566 

 Rontgen-ray equipments for me- 

 dical use see special list. 

 Rontgen ray induction coils 978 982 

 -rays, school experiments . 1073 



- show case 1074 



Rope wave apparatus 414 



Rosenberg, Angle of incident light 



and body colour .... 528 



- Glass cube 494 



- Mixing coloured rays and 



material colours . . . . . 528 



- Oscillatory motions .... 414 



- Producing smoke eddies . . 658 



- Reflection apparatus . . . 475 



- Theory of cyclones, trade 



winds 286, 658 



- Universal optical apparatus 491 

 Rosetti, Fulminating plate . . . 835 

 Rostovzeff, Reflection of sound 



waves 598 



Rotary bar 646 



- with divided circle for 

 Kolbe's thermoscope . . . 596 



- converters, see vol. I. 



- field motor, electrostatic . 827 



- high vacuum pump .... 397 



- mercury high vacuum pump 



398, 399 



- mirror 484 



- nut 313 



- object holder .... 557, 560 



- oil vacuum pumps . .394 397 



- reagent stand 219 



solenoid 968 



- star chart 662 



Rotating bah 1009 



- Heron's 407, 630 



- copper disc 952,1009 



- device for Geissler tubes. . 286 



- disc and weighted bar, 



Prandtl's 290 



- double crank 314 



- field experiments 1001 



- Geissler tubes 1017 



- iron disc with copper ring . 1009 



- magnet with copper disc 287, 977 

 masses equalised 262 



- mirrors .... 284, 431, 898 



- of electric luminous flux .1017 



- slot and crank 315 



- sphere, Heron's . . . 407, 630 



- thermocouple . . . 289, 1062 

 [{citation of a magnet under the 



influence of a current . . 970 



- of a movable current . . . 970 



- of liquid conductors . . .971 



- of magnetism 287, 977 



Page 

 Rotation of plane of polarisation 551 



- of plane of polarisation by 



magnetising forces 953, 955, 956 



- plane conserved 292 



Rotations combined 292 



composed 259 



Round paper membrane . . . 442 



- pattern barometers .... 376 



- electric instruments 906 908 



- telephone 1054 



- with antiphone . . 935 



- soft iron bars 788 



spirit level 335 



Rousseau, Photometer .... 469 

 Rowland, Diffraction gratings and 



copies of same 549 



- Photographs of the solar 



spectrum 550 



- Water battery 841 



Rubber bag 212 



- balloon with stopcock . . 403 



bellows 838 



- bladder 406 



contracting by heat . . . 571 



- cords 414 



discs 401 



- with handles 302 



- slab 822 



- stoppers .... 216, 624, 1029 



- tubing 207, 624 



- for air pumps . . . .401 



vessel 338 



Rubens, Linear thermopile . . 647 



- Thermocouple to be used as 



wave detector 1052 



- and Dubois, Astatic mirror 



galvanometer 883 



Du Bois, iron clad galvano- 

 meter 884 



Rudberg's Boiling tube .... 581 

 Riihlmann, Expansion of gases at 



constant pressure .... 574 



- Pacinotti's ring 288 



Rulimer, Oscillograph tube. . . 897 

 Ruhmkorff, Commutators . . . 866 



- Large electromagnet. . . . 954 

 Ruler 221 



- for blackboard, see vol. I. 

 Rules, Millimetre and metre 221, 222 

 Rumford, Demonstration calori- 

 meter 623 



- Demonstration photometer 467 



- Dilatation thermometer . . 588 



- Photometers 467 



- Thermal radiation apparatus 648 



- Thermometer in vacuo . . 645 



Rung 330 



Russner, Horizontal component of 



terrestrial magnetism . . 796 



- Magnetic pendulum .... 796 

 Rutherford, Prism 503 



s 



Sacerdote, Cohesion and adhesion 



tube 361, 405 



Safety funnels 219 



- lamp 640 



- tubes 219 



- valve 409 



Sail cloth blinds, see vol. I. 



Sal ammoniac 853 



- -ammoniac vapour appa- 

 ratus . 465 



Salcher, Circular motion diagraph 260 



- Magnetometer 793 



- Projectile diagraph .... 264 



Sale conditions IV 



Salt for electrolytic rectifiers . 864 



Salt solution vapour tension . . 602 



Salts for spectrum experiments. 517 



Page 



Samojloff, Stroboscopic disc . . 432 

 Sand baths 211 



- influence machine . . . .816 



Saturated steam 602 



Saturation apparatus 957 



Saturn's ring apparatus . . . . 281 



- tree 944 



Saussure, Capillary hygrometer 653 



- Electroscope for atmospheric 



electricity 836 



Savart, Polariscope 556 



- Resonance apparatus . . . 443 



Toothed wheels . . . 283, 420 



Say, Stereometer 380 



Scale, female, for dividing engine 228 



- for electrometer reading . . 843 

 Scales for galvanometers 879, 880, 895 



- see also vol. I. p. 22 

 Schiit'fer, Overflow apparatus . 574 

 Schafiers, Apparatus for experi- 

 ments with gases and va- 

 pours 365 



van Schaik, Resonance top . . 299 



- Wave apparatus 412 



Scheibler, Dessiccator 219 



Scheiner, Accommodation of the 



eye 524 



Schellen, Float apparatus . . . 344 



Schiff, Calorimeter 621 



Schleiermacher, Apparatus for the 



laws of centrifugal force . 277 

 Schlick, Ship oscillations . . . 297 



Top 292 



Schmidt, Dielectric constant of 



crystals 1045 



- Electrometer for radioactive 



measurements 1029 



- Top .291 



Schmitz's Drying tubes .... 219 

 Schneider, Experiments with gases 366 

 Schoentjes, Baroscope 367 



- Specific heat apparatus . . 616 

 Scholars' laboratory, see vol. I. 



stand camera 521 



- work room, see vol. I. 



- tables, see vol. I. 

 School accumulator batteries 855 857 



- barometers 372, 373 



clocks 247 



- experiments with Rontgen- 



rays 1073, 1074 



galvanometer . 876, 880, 881 



- magnetometer 794 



- pattern Wheatstone bridge. 918 



- projection apparatus, see vol.1. 



- rheostat, Kolbe's ..... 914 



rheostats of manganin . . . 924 



- spectroscope 510 



spectrum apparatus .... 508 



- telegraph 959 



telescope 542 



Schreibsr, Storm Recorder . . . 659 



Schroeder, Step view 525 



Schubert, Centrifugal psychro- 



meter 655 



- Flat ring 990 



Hummel, ammeter .... 905 



Schultze, Carriage with movable 



rollers 251 



Schulz, Glass block 516 



Schulze, Demonstration baro- 

 meter 372 



- Syphon apparatus 381 



Schumann, Electrothermic appa- 

 ratus 1064 



Schwedofi, Demonstration balance 240 



- Sine electrometer 804 



Schwerd, Disc with apertures for 



diffraction phenomena . . 547 

 Scott, Phonautograph . . . 456, 457 

 Scotti, Principle of hot wire in- 

 struments 904 



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



71 



