15 



Stereoscopes. 



£ 



Mahogany Stereoscope, and Diagrams 



Tin Stereoscope, and Diagrams 



Photographic Views on glass from 



Daguerreotypes from 7 6 to 



Talbotypes „ 2 6 to 



Diagrams, &c. &c. 



Spanish Mahogany Box to hold 2 stereoscopes and 24 slides 2 



Spanish Mahogany Box to hold 1 stereoscope and 32 slides 2 



Spanish Mahogany Box to hold two dozen slides 1 



Spanish Mahogany Box to hold one dozen Slides 14 



Cases for Stereoscopes and Slides made to Order 



Drawing Instruments, &c. 



Wollaston's Camera Lucida, mounted from 1 10 to 3 



Drawing Instruments for school use from 7 6 



Ditto ditto in mahogany case 1 5 



Ditto ditto in superior case, 3 ivory rules 3 5 



Ditto ditto ditto in electrum 3 15 



Ditto ditto ditto ditto double-jointed 6 



Beam Compasses from 1 15 



12-inch Ivory Plotting Scales from 7 6 to 1 



12-inch Boxwood Plotting Scales, set of 3, with offsets 11 



Ivory Folding Rules from 6 



Boxwood Folding Rules „ 10 



Plain Ebony Parallel Rules „ 4 



Plain Rolling Ebony Parallel Rules „ 9 



Ivory-edged and graduated Parallel Rules per inch 16 



Barometers, Thermometers, &c. 



Pediment Barometers from 3 



Pediment Barometer, best, with float gauge 9 



Wheel Barometers from 2 2 



Standard Thermometer „ 2 10 



Negretti's Maximum Thermometer 110 



Six's Self-registering Thermometer 1 10 



Horizontal Self-registering Thermometer 17 



Boxwood Thermometers from 3 6 



Simmons's Hygrometer 2 2 



Rain Gauges to Order. 



Air-Pumps and Electrical Machines 



TO ORDER. 



Printed by Taylor and Francis, Red Lion Court, Fleet Street, London. 



