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 REGBETTI KB ZAUBM'S NEW DESGRIPTIYE CATALOGUE 



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OPTICAL, MATHEMATICAL, PHOTOGRAPHIC, & STANMED METEOEOLOGICAL 



INSTRUMENTS, 



Illusteated by upwaeds of 500 Engeavings. Published September 21, 1859, Post-feee 2*. 6d. 



standard Moteorologioal Instruments. 



Barometers, Thermometers, and Hygro- 

 meters. 



Steam, Vacuum, Hydraulic, Rain, and Gas- 

 Pressuro Guages. 



Hydrometers and Saocliarometers. 



Chemical Apparatus of Glass, Porcelain, and 

 Eartbenware. 



Apparatus for Organic Analysis. 



Chemical and Philosophical Apparatus, and 

 Instruments of Metal, etc. 



Chemical Cabinets, and Portable Labora- 

 tories. 



Frictional Electrical Apparatus. 



NEGRETTX & ZAMBRA'S Mew BINOCULAR 

 ACHROMATIC GLASSES, 



With Three Powers, suited for the Opera, Eace, or Reconnoitring. 



The definition and magnifying power of these Glasses cannot be 



excelled. 



Firxce, 4 to 7 Guineas. 



STANDARD and PATENT 

 nXETEOROLOGICAL INSTRUMENTS. 



Eecommended by the Council of the Meteorological Society, and 

 Buppliid by IS'eoretti & Zambea to the Royal Observatory, Green- 

 wich, the Government Scientific Departments, the various Foreign 

 Governments and Observatories, etc. 



CONTENTS OF CATALOGUE 



Voltaic or Galvanic Apparatus. 

 Electro Metallurgical Apparatus. 

 Magnetic, and Electro Magnetic Apparatus. 

 Pneumatic Apparatus. 

 Hydrostatic and Hydraulic Apparatus. 

 Opera and Race Glasses. 

 Microscopes and Apparatus. 

 Various Optical Instrimients. 

 Spectacles. 

 Telescopes. 



Magic Lanterns, and Dissolving View Appa- 

 ratus. 

 Polarising Apparatus, 



Surreying Instruments, 



Nautical Instruments, and Sun Dials. 



Mathematical Drawing Instrtiments, Scales, 



and Rules. 

 Globes and Orreries. 

 Mechanics and Dynamics, Apparatus to 



Illustrate and Explain. 

 Models of Steam Engines, etc. 

 Gun-metal, etc., for Steam Engines, Boilers, 



etc. 

 Surgical and Acoustic Instruments. 

 Photograpliic Apparatus. 

 Stereoscopes and Slides. 



NEGRETTI & ZAMBRA'S 

 Standard Bazometez - - - - -£8 80 

 Patent Maximum Registering Ther- 

 mometer ------- 110 



RepoH of the Astronomer Eot/al. 

 " We have for several years been very much troubled by the 

 failures of the Maximum Sell -Registering Thermometers, especiiiUy 

 those exposed to the sun : the part of the tube in which the index 

 ought to slide becomes foul, apparently lined with a coat of metal, 

 and the index is immovable. A construction invented by Messrs. 

 Kegretti and Zambra appears likely to evade this difficulty. The 

 mercury in its expansion is forced past an obstx-uction in the tube, 

 and does not return past in its contraction. No index is required 

 in this construction. The specimens of this instrument which we 

 have tried answer well." 

 Copi/ from the Report of the Kew Committee of the British^ 

 Association. 

 " The very ingenious instrument of Messrs. Negretti and Zambra 

 has one quality which, as regards durability, places it above every 

 other form of Maximum Thermometer, for when once well con- 

 structed, it can never get out of order." 



Minimum Registering Thermometer- £110 

 Wet and Dry Bulb Hygrometer - - 2 2 

 Rain Guage, Glaisher's Form - - 110 



The whole of NEGREni and Zambea's STANDARD METEOR- 

 OLOGICAL INSTRUMENTS are now mounted with their new 



Patent Engraved & Enamelled Porcelain Scales, 



rendering the divisions clear and legible, also perfectly permanent 

 and unalterable by damp or exposure. 



PHOTOGRAPHIC APPAEATUS. 



ACHROMATIC LENSES AND CAMERAS, 

 OF ALL SIZES. 



STEREOSCOPIC PORTABLE CAMERA, fitted with Achro- 

 matic Lens, Slides for holding Six Stereoscopic Plates, angular 

 movement, etc., etc., packed in a light case, weight -1 lbs. A most 

 simple and complete working apparatus. 



Price £6 Os. 



STEREOSCOPES AND SLIDES. 



Achromatic, Cosmoramic, and simple Hand Stereoscopes, of 

 every form and material, 



From 5s. to £5 5s. 



Stereo<^copes mounted on convenient and ornamental stands; 

 Patent Magic Stereoscope, fitted with various lenses for increasing 

 the magnifying power, and adapting the instruments for long or 

 short sight. 



Price £6 6s. to £7 7s. 



Patent Revolving Magazine Stereoscopes, to hold and exhibit 

 twenty-five slides, 



£4 4:s., £5 5s., and £10 10s. 



STEREOSCOPIC SLID£S. 



All the New Subjects, on glass or paper, by the most celebrated 

 artists, as soon as published. 



Priceon Glass, Os.to 7s. 6d. ; on Paper, Is. to 2s.6d. 



A DETAILED CATALOGUE of aU the choicest Stereoscopic 

 Slides published, by all the best artists, up to the present time, for- 

 warded on receipt of Six Stamps. 



NEGRETTI AND ZAMBRA are continually publishing New 

 Views, taken in all parts of the globe ; and to their own well known 

 series will shortly be added China and Japan, from negatives taken 

 specially by their own artists. 



NEGRETTI AND ZAMBRA, 



OPTICIANS AND INSTRUMENT MAKERS TO HER MAJESTY THE QUEEN, H.R.H. THE PRINCE CONSORT, ETC., EIO. 



No. 1, HATTON GARDEN,; 107, HOLBORN HILL; also 59, CORNHILL, 



LONDON, E.C. 



