Photograph (8 3/4"x6 1/2") of 9 instruments:- Optical bench, three microscopes, dialytic telescope, lens prism, projection prism and two spectroscopes. 1876 loan collection cat.p. 1080 no.14 Photograph (8 3/4"x6 1/2") of 9 instruments:- Optical bench
Spectroscope on stand, signed "Spencer Browning & Co, London", presented to W. Johnston by student of the Newcastle on Tyne Mechanics Institute, 1863 Spectroscope on stand 1863
Spectroscope made by Bausch & Lomb Optical Co., New York, c.1920 Spectroscope made by Bausch & Lomb Optical Co. circa 1920
four-prism spectroscope (only two prisms present), by J. Duboscq of Paris, France, c. 1870. It was used by the third Marquis of Salisbury, British Prime Minister four times between 1885 and 1902, an enthusiastic amateur scientist. Four-prism spectroscope 1865-1875
Incorporating Thorp's relica of Rowland metal diffraction grating. f/8 RR type lens with iris; adjustable slit. Fitted in wooden box with fold-down ends, with various accessories, including plate holder for spectrographs. Projection Spectroscope and Spectrograph
two-prism spectroscope, with accessories, in case (damaged), made by Browning, London, c.1890. Two-prism spectroscope 1885-1895
Hematospectroscope; Hemocque's form; by Ed Lutz, Paris Hematospectroscope; Hemocque's form; by Ed Lutz
Automatic spectroscope by G. and S. Merz (unsigned). Two micrometer slits in a mahogany box, drum of each divided into 100 parts. a) Sorby eyepiece in box by "A Hilger London", with position micrometer; 1 small screw missing, in mahogany box. Spectroscope is heavily constructed, height about 16", diam. of plate 12 1/2", 6 prisms, 3 eyepieces with washleather cover at eye end Automatic spectroscope by G. and S. Merz (unsigned)
Spectroscope, single prism, with graduated circles on iron tripod stand, brass cap for prism, two tubes, additional eyepiece and microscope for reading small divisions, height 14in., tubes 12in., prism 2 1/4in., side 1 1/2ins. high Spectroscope, single prism
Vertical spectroscope with two bunsen burners, specimen stand and case, by J. Duboscq, Paris, c.1870. Vertical spectroscope with two bunsen burners 1865-1875
Binocular spectroscope apparatus by Spencer and Son, Dublin, 1874. Two parallel spectroscopes each with a prism in wooden mount), in a wooden case. The spectroscope was taken by the Transit of Venus Expedition to the Cape of Good Hope in 1874-75. It is probably unique. Binocular spectroscope apparatus with case 1874
spectroscope stand and calcite crystal, said to have belonged to William Lawrence Bragg. spectroscope stand and calcite crystal
1 P & L goniometer eyepiece, 1 P & L Filar micrometer eyepiece, 1 P & L coverglass micrometer, 1 P & L substage condenser, 1 P & L Nicol prism, 1 Zeiss Browning eyepiece spectroscope, 1 set Leitz objective changers Microscope accessories by Zeiss, Powell & Lealand, and Leitz
Spectroscope on stand signed "Steinheil in Munchen", telescope is numbered 1402 and collimator is 1319. Prism and mounting are missing Spectroscope on stand signed "Steinheil in Munchen"
Spectroscope for rapid spectro-chemical analysis of metals by R. Fuess, Berlin, Germany, c. 1956 Spectroscope for rapid spectro-chemical analysis of metals by R. Fuess 1956