GENERAL INDEX. 



39 



ROCHOX'S telescope for measuring angles and distances . 

 ROE MUR'S mercurial thermometer described 

 KOGET'S galvanic experiments, account of . . 



demonstrations of the properties of the magnetic 

 curves ......... 



invention of a machine for the mechanical delinea- 

 tion of the magnetic curves ..... 



experiments on the mutual attraction of the coils of 

 a helical conducting wire ..... 



Rotations caused by electro-magnetism .... 



of a magnet round its axis .... 



helical, by electro-magnetism .... 



rendered visible in terrestrial magnetism 



on the magnetism of ..... 



Rotatory and vibratory motions, experiments on 

 Royal Institution, voljtaic battery 



experiments made at ... 



Royal Society, their early attention to electricity 



description of a dipping-needle belonging to them 

 RUMFORD'S thermoscope described .... 



Russia, thermometer used in ..... 



RUTHERFORD'S day and night thermometer 



SABINE'S dipping-needle described .... 



Sapphire and diamond lenses, their aberration compared with 

 those of glass ....... 



lenses and microscopes ..... 



SAXTORIO, the maker of the first thermometer, described 

 Satellites, why they revolve round their primary planets 



of Jupiter, their eclipses, and advantages of 

 Saturn, with his seven moons and ring, described . 

 Saturn's sixth satellite, when discovered 

 Scale, Fahrenheit's, principle of its division 



. . Newton's for determining reflected colours 

 Scales of thermometers, directions for graduating 



. . for . . proposed by Boyle, Halley, and Hooke 



. . . . by Murray 



. . of Reaumur's, Fahrenheit's, and Celsius's thermome- 

 ters converted into each other ..... 



. . tables of the correspondences of different thermometrical 

 SCHMIDT'S air-pyrometer described ... 

 SCLIWEIGGER'S electro-magnetic multiplier 

 SCORESBY'S experiments upon the magnetism of iron 



instrument for finding the dip of the needle . 

 Screw, its effect as a mechanical power explained 

 Sea and land breezes, their causes described . . 

 Seasons, causes of their variation explained 



their vicissitudes in the planets . . 



'art/ galvanic piles described . 



;vhis knowledge of optics . . 



by a current of voltaic electricity 

 ccasioned by the galvanic and electric fluid 

 n object, by what means visible 



cnned and illustrated . % 



omena of ..... 



illustrations of 



prevented .... 



OPT. INST. 



THERM. 



GALV. 



MAUN. 



ELECT. MAGN. 



MAGN. . 

 ELECT. MAGN. 

 GALV. 



ELECT. . 

 MAGN. 

 THERM. . 



MAGN. 

 OPT. INST. 



THERM. 

 POP. INT. 



OPT. INST. 



THERM. 

 NEW. OPT. 

 THERM. 



13 



NEW. OFT. 2 



1 figure of 

 Ship's copper, its corrosi 



Shock, electric. See E/ecMe shock. 



communicable to vast numbers of persons at 

 a time and through great distances .... 

 Shocks, tipwerful, from voltaic and electric batteries, equally 

 destructive of animal life . . . . 



electric, received from different species of fishes 

 Sidereal and solar time, distinction between 

 Sight acquired by a man who had been blind from infancy, its 

 effects upon him described . . 



cause and remedy of its decay in old age 

 Signs of the zodiac described ..... 



Silver and sulphur, their combination assisted by galvanism 



ELECT. MAGN. 

 MAGN. . 



POP. INT. . 



GALY. 



OPT. INST. 

 GALV. 



POP. INT. 



NEW. OPT. 

 POP. INT. 

 GALV. 



ELECT. 

 GALV. 

 POP. INT. 



GALV. 



7 

 30,31 



19 

 . 20 



59 



1932 



23, 24 



39 



. 50 



9196 



3032 



7 



1013 

 1 



7578 



, 40,41 



9 



36,37 



80,81 



13 



39,40 

 2 



34,35 



. 52 



36 



17 



7 



46 



15, 56 

 4,5 

 9 



10 

 63 

 31 

 40 

 14 

 81 

 . 28 



70,71 



4448 



48 



27 



33 



. 18 

 18 

 27 



75,76 



. 61 



2 



14 



39,40 



19 

 . 26 



48,49 



80,81 



. 97 



37, 42 



24 



