691 



692 

 693 

 694 



695 



696 



697 



698 



699 

 700 

 701 

 702 

 703 



5, COKNHILL, E.G., AND 122, REGENT STRKET, W., LONDON. 



k D 



223 



FIG. 700*. 



FIG. 696. FIG. 691. FIG. 695. 



'MAGNIFIERS AND POCKET MICROSCOPES. 



Flower Microscopes, folding up into convenient size, 



with neat cases for the pocket (fig. 691) 

 Gardener's Microscope in case (fig. 692) .... 

 Seed Microscopes, with glass body, in case . . 2s. 

 Beetle or Insect Microscopes, convenient for examining 



living insects . '. . . . 3s. 6d. 



Ditto ditto large size, best mounted 



(fig. 695) 



Botanical Microscopes, with three powers, mirror, &c., 



in pocket case (fig. 696) 



6 







10 

 5 



7 



046 076 

 10 6 15 



FIG. 692. 



FIG. 698*. 



FIG. 698. 



FIG. 697. 



FIG. 697 



026 



Cloth Microscopes or Linen Provers, for ascertaining 



the number of threads in a given space of linen, cloth, 



&c., in round case (figs. 679 and 697*) 

 Ditto ditto folding for Pocket (figs. 698 and 698*) 



2s. 6d. 



Ditto ditto for Coarse Goods, extra large 

 Watchmakers' and Engravers' Magnifiers (fig. 700) Is. 

 Pocket Magnifiers, in Horn mountings (fig. 701) . 



Ditto ditto two lenses 



Ditto ditto, three ditto (fig. 703) . . .3s. 

 Ditto ditto one, two, or three lenses, in Tortoise-shell 



mountings (fig. 704) 5s. 6d. 10 6 15 



Ditto ditto Tortoise-shell and Gold. Pearl and 



Silver mountings with Single or Double lenses, 



(fig- 705). 



Prices various. 



