45, CORNHILL, E.G., AND 122, REGENT STREET, W., LONDON. 



591 



Prismatic Compasses, page 293. 



Case and Strap for ditto, 1171. 

 Stand for ditto, 1175. 

 Improved, or Alt- Azimuth, 1170*. 

 Compass, Ordnance Pattern, 



page 307. 



Telescopic, 1177. 



Hutchinson's, 1174, 



Kater's, 1166. 

 Azimuth Compass, 1377. 

 Snow Harris's, 



Transparent, 1386. 



(Compass) Plane circular, 1166. 

 Kitchie's Liquid, page 321, 322. 

 Prism, Rectangular, 717. 



Bisulphide of Carbon, 1087. 

 ,. Quartz. Made to Order. 

 Prisms, Compound, 719. 

 Deck, To Order. 

 Prisms, Double Image, 1065. 

 Glaas, 717, 1086. 

 Hollow, 721. 

 Nichol's Double Image, 1065. 

 Prisms, Nichol's Single Image, 1064. 

 Proportional Callipers, 1551, 1701. 



Compasses, 1534. 



Protractors, page 340, 341. 

 Brass Circular, 1610. 

 Ivory, 1585. 

 Brass Semicircle, 1606. 

 Card, 1605. 

 Horn, 1604. 

 Red line, Ivory, 1589. 

 Psychrometer, page 95. 

 Pulleys, system of, 3024. 

 Pulse Tubes, 2044. 

 Pumps, Air, single and double barrel, pages 



468 to 471. 



Centrifugal, 2927. 

 Condensing, 2852. 

 Exhausting, 2850. 

 Force and Lift, models of, page 472. 

 Pump, Triple Cylinder, 3127. 



Condensing, for Diving Apparatus, 



page 506. 

 Tate's, 2847. 

 Sprengel's, 2849. 

 Calletet's Compression, 3149. 

 Pumps, Air and Water Compression, 3152. 

 Purifier, Gas, 1781. 

 Pyrheliometer (Pouillett's), 61. 

 Pyrometers, pages 203, 204, 484. 

 Pyrometer, Helio, 60. 

 Pyroscopes, Leslie's, 2982. 



Quadrants, page 311. 



Quadrants, Metal, 1320. 



of Altitude, 1452. 

 Quadrant Electrometer. 24 13. 



and Sextant Glasses, page 310. 

 Quain's Stethometer, 3110. 



Race Glasses, Binocular, pages 233 to 240. 



Radii Curves, 1631. 



Radiator, Leslie's, 2980. 



Radiometer, Crooke's, page 276. 



Railroad and Railway Trains, Models, 3008. 



Eye Preservers, page 219. 

 Regular and Railway Curves, page 343. 

 Rain Gauges, Admiral FitzRoy's, 114. 

 Glaisher's, 110. 

 Howard's, 108. 

 Pedestal, 112, 113. 

 Symons's Improved, 94. 

 Snowdon, 118. 



Storm, 121. 



Square (Col. Sir H. James), 



116. 



Registering (Crossley's), 120. 

 Pocket, 115. 

 Osier's Registering, page 107. 

 instructions for use of, 82. 

 Meteorological Office, 117. 

 Marine, 124. 

 Water Works or Mountain, 



page 551. 



Bentley's Snow Melting, 123. 

 ,, described, pages 81 to 89. 

 Rain Fall, Tables of, page 81. 

 Statistics of, page 81. 

 Charts, page 133. 

 Rainey's Light Modifier, 951. 

 Ranging Poles, 1728. 

 Reade's Condenser, 948. 

 Reading Glasses, page 222. 

 Receivers, page 475, 476. 



Cooper's Gas, 1946. 

 Tube, 2056. 

 V and U shape, 2063, 2064. 

 Glass and Air Pumps, page 475. 

 Receivers with 3 necks, 2062. 

 Re-composition of Water, apparatus for, 2131. 



of Light, 718. 



Reconnoitring Binocular Glasses, N. ar.d Z's 



Improvement, page 240, 241. 

 Telescopes, 825. 

 Rectangular Battery Troughs, 2574. 

 Wire Frames, 2721. 

 Prism, 717, 

 Reduction Tubes, 2046. 

 Reflecting Circles, 1589, page 308. 

 Prism, 953*. 



