INDEX 



The figures in this Index refer to the numbers on the margin of each page of the 

 Catalogue, unless the page be indicated. 



Abney's Altimeter, 1203. 

 Acetometer, or Acetimeter, 476. 

 Achromatic Condenser, 943. 



Gillet's, 944. 



Lenses, Photographic, pages 517 to 

 527. 



Microscopes, pages 256 to 275. 



Object Lenses for Microscopes, 

 page 268. 



for Telescopes, 871. 



Stereoscopes, page 231. 



,, Telescopes, pages 242 to 255. 

 Acidometer, 475. 



Baume's, 422. 



Acoustic Instruments, page 494. 



Figures, Chladdi's, 3064. 

 Actinometer, Herschell's, 69. 



Marie Davy's, 72. 



Adapters, 1889 to 1891. 

 Addiscombe Set of Drawing" Instruments, 



1478, 1478*. 

 Adhesion Plates, 3027. 

 Admiralty Charts, page 327. 

 Agricultural Barometer, page 144. 

 Agricultural Test Chests, 2371. 

 Air Gun, 2906. 



Tubes, page 375. 

 Air Jars, page 375. 



Covers, glass, 2002. 

 iAir Pump Receivers, page 476. 

 Air Pump, Davenport's, 2835. 



Newman's, 2841. 



Smeaton's, 2841. 



Tate's, 2847, 2848. 



Sprengel's, 2849. 



Triple Cylinder, 2832. 



Vacuum and Pressure Gauge, page 

 207. 



for Diving Apparatus, page 505. 

 Air Pumps, double barrel, page 469. 



single, 470. 



Air Meter, page 99, 100. [101 to 103. 



Colliery (Lowne's Patent), page 



Air Thermometer, Boyle's or Santorio's, 360, 



2951. 



Air Shaft Thermometers, Registering, 371. 

 Airy's Altitude Tables, page 133. 

 Aitken's Clinical Thermometers, page 160. 

 Alarm Thermometers, 357, 358. 



Electrical, page 460 to 465. 



Albumen Views and Statues for the Lantern, 



page 369. 



Albumenized Papers, pages 544, 545. 

 Albums, 3315. 



Alcoholmeter, Field's Patent, page 193. 

 Alcoholmeter, Gay Lussac's, 499. 



,, Tralle's Normal, 504. 



Alcoholic Wine Tests, page 193. 

 Alphabetical Telegraphs, 466. 

 Alembics, 1908 to 1910. 

 Alkalimeters, 1902 to 1906. 

 Mohr's, 2278. 

 Schuster's, 1906. 

 Almanacs, Nautical, page 327. 

 Alpine Aneroids, page 25. 

 Thermometers, 71. 

 Altimeter, 1203. 

 Altitude Measurements by the Barometer, 



pages 10, 12, and 26. 

 Altitude and Azimuth Instrument, 1107 to 



1112. 



Altitude Aneroid Barometers, pages 23 to 25. 

 Altitude, Quadrants of, 1452. 

 Aluminium Field and Opera Glasses, pages 



234 to 240. 



Telescopes, 830. 

 Weights, 2353. 



Amalgamated Zinc Battery Plates, 2582. 

 Amalgam, Electrical, 2505. 

 American Hand Level, 1147. 

 Ampere's Apparatus. 2684. 

 Amplitude Compasses, 1377. 

 Analysis of Soils, &c., apparatus for, 2371. 

 Analyser, Spirit, Long's Patent, page 193. 

 Analytical Weights, pages 400, 408. 

 Anatomical Preparations, 1034. 



