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



LONDON. 



589 



Hanitariums, 1453. 



Oxygen Gas Retort, Glass, 1992. 



Oxy-calcium Gas Jet, 1776. 



Oxygen Gas Mixture, 1794. 



Oxy-hydrogen Gas Apparatus, page 362. 



,, Burners, 1777. 

 Oxy- Hydrogen Light (see Dissolving Views), 



page 319. 



Microscope, page 282, 1096. 

 Ozone Box, 159. 



Cage, Sir James Clark's, 160. 



Apparatus for Testing, described, &c., 



page 113. 



Tube, Siemen's, 154. 

 Tube, Will's 30/- 

 Case, Lowe's, 161. 

 Ozonometer, Moffat's, 156. 



Schonbien's, 158. The use of these 



tests now given up. 

 Pancratic Eye Tubes, Kitchener's, 825. 

 Pantometre, 1162. 

 Pantoscopic Spectacles, page 214. 

 Paper, Filter, pages 401, 544. 



Mounts for Microscopic Objects, 996- 

 Photographic, page 544, 545. 

 Papers for Station or Levelling Staves, 1231. 

 Albumenized page 545. 

 for Steam Indicators. 

 Forrustecher's, page 545. 

 Test, 2336. 

 Tracing, 1644. 

 Paper Weights, 1648. 

 Paradox, Hydrostatic, 2910. 

 Parabolic Reflectors, pages 404. 487, 

 Paraffin or Petroleum Hydrometers, page 177. 

 Testing Apparatus, page 170. 

 Thermometers, 391*. 

 Lamps for Microscope, page 271. 

 Parallel Rules, Rolling, page 339. 

 Parchment Paper, for use with Dialyser, 2149. 

 Parting Glasses, 2029. 

 Passe Partout, Supplied To Order. 



Stereoscopic, ditto-. 

 Passometer or step Measure, 1188. 

 Patent Stereoscopes, 771. 

 Pedestal Globes, page 328. 

 Pedometer, 1187. 

 Pencil Bows, 150 . 



Pencils, small, for Drawing Instruments, 1640. 

 Pens, Bows, 1509. 



Drawing Page, 336. 

 Dotting, 1525. 

 Road, 1526. 

 Ruling, 1519. 



Pen Machine, 1646.J [137. 



Pendulum Anemometer, Negretli & Zambra's, 



Pendulum Wheel PrismaticClinometer, 1170* 

 Pentagraphs, 1266. 

 Pepys' Gas Holder, 2066. 

 Pelorus, Friend's, 1429. 

 Pitchometer, 1441. 



Piche's Evaporometer, 140, page 139. 

 Pickets, 1728. 



Perambulators, or Road Measures, 1185. 

 Percolator Glass, 2040. 

 Percy's Apparatus for Alkalies, 2142. 

 Periscopic Spectacles, 620. 

 Perlivision Spectacles, 632. 

 Perkin's Steam Gun, 3016. 

 Perspectives, page 242. 

 Phantascope, 757. 



Phantasmagoria Lanterns, page 351. 

 Pese-Acide (see Baume's Hydrometer, or 

 Ar^ometre de Baum<) 



Esprit ditto ditto, page 177. 



Sirop ditto ditte, page 177. 

 Phenomena of Heat, page 481. 

 Photographic Apparatus, sets of, page 553. 



Brushes, 3306. 



Cameras, pages 528 to 533. 



Chemicals, pages 550 to 552. 



Colouring Materials and Colours, 

 page 344. 



Glass, page 544. 



Lenses, pages 517 to 527. 



Papers, pages 545 and 544. 



Slides for Magic Lanterns, &c., 

 page 369. 



Statues for do., pages 369 and 370, 



Tents, pages 534, 535. 



Hydrometer, 3242. 



Developing Box, page 534. 

 Photometers, for Coal Gas Testing, Bunsen's, 



Letheby's, Evans', King's Sabine's 3305* 



Wheatstone's, Lowe's, 750, page 497. 

 Physicians' Thermometers, page 160. 

 Pile, De Luc's, 2415. 



Melloni's, 2725. 



Zamboni's, 2416 



Volta's, 2513. 

 Pillar Compasses, page 337. 

 Pilots' Binocular Night Glasses, page 237. 



Telescopes, page 244, 834. 

 Pincettes (see Forceps). 

 Pince-Nez, page 216. 

 Pins, Drawing, 1637. 

 Pipettes, pages 385, 386. 



Graduated 2035., 

 Pistol, Electrical, 2478. 

 Pith Balls, 2444*. 



Ball Stand, 2443. 



Figures, Electrical, 2442. 



