352 



NEGRETTI AND ZAMBRA, HOLBORN VIADUCT, E.G., 



FIG. 1750. 



FIG. 1751 



1749 Very Superior large -sized Phantasmagoria Lantern, 



with 34-inch condensing lenses, sliding tube for 

 adjusting the focus, improved Fountain Argand 

 Lamp, with Reflector complete, of the very best 

 construction ; to show a 3-inch painting on a disc of 

 10 feet diameter (fig. 1750) 



1750 Ditto ditto with Rackwork adjustment 



1751 Ditto ditto, 4-inch, with ditto ditto (fig. 1751) 



Each. Each. 



s. d. s. d. 



330 

 3 12 6 



440 



These Lanterns are so much improved, and used with such facility, that they may be recommended 

 with the greatest confidence, giving a perfectly defined figure, with a well illuminated fiel o view, from 

 6 to 10 feet in diameter. Combined with Negretti and Zamtora's Coloured Photographic 

 Slides, they present a delightful mode of instruction with amusement. To Schools, Mechanics' 

 Institutes, &c., they offer peculiar advantages, and are extensively used by the conductors of these 

 institutions for illustrating almost every branch of scientific information. 



1751* Estimate for Sets of Lantern Sliders. a box of 



12 best Comic sliders, 12 movable Comic slip slides, 



2 sets of Fairy stories, 2 best Chromatropes, 2 lever 



sliders, 6 Coloured views, and 3 Negretti and Zambra's 



Photographic Statues. 



"With Phantasmagoria Lantern as 



No. 1749 ....... 



No. 1750 ditto ditto 



No. 1751 ditto ditto 



A Microscope adapted to the above Lanterns, at 2 2 additional, will 



show small objects brilliantly enlarged on a disc 4 feet in diameter. 

 Balsam-Mounted Microscopic Objects, suited for above, 2s. to 2s. 6d. each. 



1752 



1753 



11 11 



12 12 

 14 14 



1754 An Improved form of Paramn Lamp can be supplied with the Lanterns 

 Nos. 1749 to 1751, in place of Oil Lamps, as described on future pages. 



