45, CORNH1LL, E.G., AND 122, REGENT STEEET, W., LONDON. 



Microscopes, Flower, 691. 



Gardeners', 692. 



Magic Lantern, 1752. 



Students', pages 258, 259. 



Oxy-hydrogen, 1096, page 282. 

 Seed, 693. 



Single Botanic or Dissecting, 

 page 256. 



Brewers, page 261. 

 Microscopic Air Pump, for mounting, 1008. 



Cabinets, 1040. 



Copying Camera, made To Order. 



Dissecting Instruments, 983. 



Fishing Tubes, 1001. 



Forceps, 970. 



Glass Rings and Cells, 99). 

 Microscopic Glass Slides, 993. 



Glass, thin, 993, 994. 



Gold Size Cells, apparatus for, 

 1006. 



Injecting Syringe, 1009. 



Lamps, Argand Oil, Paraffin, &c. 

 page 271. 



Materials, page 273, 274. 



Mounting Papers, 996. 



Object Boxes, 1043, 1047. 



Mounting Lamp, 964.* 



Object Lenses, page 268. 



Objects, pages 274, 275. 



Section cutters, 1007. 



Stage Plates, 992. 



Tables, 1048. 



Test Objects, 1032. 



Tubes for Collecting, 1001. 



Camera Lucida, 960. 

 Midshipman's Telescope, 840. 

 Military Drawing Scales, 1589, 1594. 



Pocket Telescopes, page 243. 



Telescopes, N. and Z.'a improved, 

 828, 829. 



Reconnoitring Binocular Glasses, 

 796, page 236. 



Theodolites, page 284. 



Telegraph, pages 463, 467. 

 Milner's Wire Gauge, 1723. 

 Mineral Holder for Microscope, 973, 981. 

 Mining Theodolite, 1149. 

 Mineralogical Cabinets, page 503. 

 Miner's Barometer, 175. 

 Miners' Aneroid Barometers, 176. 



Compass, 1157. 



Dials, page 290. 



Lamps 2993. 



Miniature Cases and Frames, To Order. 

 Minim Measures, 2018. 

 Minute Glasses, 1405. 



Mirrors, Parallel, made To Order. 

 Mirrors, Black, 715. 



Reflecting, 713. 



,, Concave and Convex, 713. 



Cylindrical and Distorting, 733. 



Conical, 734. 



Multiplying, 714. 



Dentists', 3111. 

 Mitscherlich's Potash Apparatus, 2138. 

 Mixing Jars, 2027. 

 Model Archimedes' Screw, 2929. 



Apparatus for Submarine 



Explosions, 2808. 

 Model, Barker's Mill, 2928. 



Bramah's Hydrostatic Press, 2940. 



Breast Wheel, 2943. 



Canal Lock and Sluice, 2944. 

 Model Capstan, 3049. 



Centrifugal Pump, Appold's, 2927. 



Diving Bell, 2710. 



Electro -Motive, 2710 to 2713. 



Force Pump, 2882. 



, Geometrical, 3050. 



Hero's Engine, 2997. 



Lifting & Force Pumps, 2881, 2882. 



Locomotives, page 489. 



Marine Steam Engines, 1313. 



Mongolfier's Water Ram, 2931. 



of various Steam Engines, pages 



489 to 490. 

 Overshot Wheel, 2942. 



Undershot Wheel, 2941. 



Perkins' Steam Gun, 3016. 



Railway Trains and Railroad, 3011. 



Sawing, rolling, and grinding mills 

 &c., 3000. 



Sectional, of High and Low pres- 

 sure Steam Engines, 3017. 



Steam Boats, 3015. 



Steelyard, 3048. 

 Model Telegraphs and Signal Bells, 2714, 2715. 



of the Eye, 745. 



to explain formation of Screw and 

 Nut, 3026. 



to illustrate properties of an Arch, 

 3046. 



Toothed Wheels, 3047. 



Water Pump, 2880. 



Fire Engine, 2884. 



Steam ditto, 3012. 



Hero's Fountain, 2930. 

 Models to illustrate Optics, page 225. 



Acoustics, page 494. 



Models, various, to explain and illustrate 



the laws of Mechanics and Dynamics, 



page 491. 



