£. s. d. 

 63. Moveable Stages, (M. I.) =£2. 10s. to 



69. Fine Adjustments, (M. 218) 7<T»'T 



70. Dissecting Instruments, in cases £Z.Zs.\o 



71. „ Scissars (M. C. 244) 7 



72. ,, Handles 



73. ,, Needles • 



74. Writing Diamonds, for marking names on slides 



f 5# ' turned points.: 



76. Microscopic Lamps, with shades 



77. Condensers and Mirrors, various sizes 



78. Cylindrical Glass Vessels, for holding aquatic insects and plants 



79. Flattened ditto 



80. „ Troughs, (M. 14) 



81. Aquatic Live-Boxes, (M. I.) 



82. ,, with thin glass covers 



03 M and Micrometers 



84. Micrometers on glass, mounted in ivory, l-50th to l-200th 3 < 



1 -500th to 1 -5000th 



86. >> on pearl slips 



87. ,, fine screw, for the stage ... 



88. ,, ,, eye-piece 



89] ,, Drawing Eye-pieces, with improved adjustment, (M. I.) 



90. Camera Lucida Eye-pieces, various 



91. Rectangular Prisms Boots, (M. I -•••• 



9*. Phantasmagoria and Magic Lanthorns ••• *2. 2s. to 



°3. Improved Astronomical Slides, for Magic Lanthorns, &c. (the motions 



obtained by wheel-work)— Solar System, shewing the Motion of 

 all the Planets; Parallelism of Earth's Axis; Comet's Elliptic 

 Orbit ; Earth's Annual and Diurnal Motion, with the Moon's 

 periodical Revolution ; Phenomenon of the Tides illustrated ; 

 Apparent Retrograde Motion of Venus ; Rotundity of the Earth ; 

 Diurnal Motion of the Earth, the Rising and Setting of the Sun ; 

 Annular and Partial Eclipse ; Spots on the Sun— in sets or single 

 94 Slides, for ditto, of Costume, Buildings, Natural History, Comic 

 Subjects &c per dozen 



95. Ditto, moveable •••■• per dozen 



96. Sylphitrope figures, for revolving on a wet inclined plane ..each j 6 



97. Unannealled glasses, for shewing coloured tints by polarized light ... 



98. Devices of Selenite, for ditto «"T« ™ \ n 



99. Windows, Figures, &c ^1. 10s. to 20 



100. Tourmalines, unmounted, each £ s - t0 * 1U 



101. Single Image Calc Prisms, £ to 2 inches long 7s. to 



102. Double Image QuaTtz Prisms - '-"."'"" 



103. Crystallized Plates of Amethyst, Arragonite, Beryl, Borax, Sulphate 



of Barytes, Chromate of Potash, Sulphate of Iron, Calc Spar, 

 Quartz, right and left, Iolite, Nitre, Rochelle Salt, Topaz, Tour- . 

 maline, &c. for exhibiting the system of rings by polanscope . each 



104. Polished Calcareous Spar, exhibiting white double elliptic rings ... 

 10 - n multiplication of coloured images 



106. Fresnel's Rhombs 



107. Microscopic Objects, cases of, 40 transparent 7 6 



108. „ 11 36 opaque • y, 



10 9° f „ prepared in balsam 12s. to 5 5 



110 ' M large, for solar and 



gas microscopes 



HI, ,, in cabinets <£?>• &*■ to 



These collections of objects consist of preparations of insects : their 

 larvae; the different parts illustrative of the varied construction of 

 their locomotive, prehensile, manducatory, visual, and other organs ; 

 dissections shewing the structure of the alimentary, respiratory, and 

 nervous systems- fossil infusoria-parts of plants— ferns -algte— 

 mosses, &c— Objects mounted in this way (as first described in the 

 •■ List of 2000 Microscopic Objects") are rendered transparent and 

 permanent. 



