264 



NEGRETTI AND ZAMBRA, HOLBORN VIADUCT, E.C , 



915 Student's Binocular Microscope, fitted with adjustment for width of eyes, a 



pair of Eye-pieces, 2-inch and 1-inch Object Glasses, Condensing Lens on 

 Stand, Live Box, Forceps, &c., packed in Mahogany Case . 12 12 



916 Binocular Microscope, similar to No. 915, but finished in superior manner, and 



with 1-inch, 1-inch and |-inch Object Glasses (fig. 916) . 18 18 



917 Binocular, similar to No. 916, but fitted with Polarising Apparatus, two pairs 



of Eye-pieces, Spot Lens and Selenite Plate, &c. . . . 22 



918 Binocular, similar to No. 917, but with Mechanical Stage, Fine Adjustment, 



&c 25 



920 Binocular, similar to No. 918, but with Larger Stand, Sliding and Rotating 

 object holder, spring side clamp, Clamping Arc for fixing at any angle, 

 extra large Condensing Lens on Stand, Glass Trough, two Stage Plates 

 Fishing Tubes, Frog Plate, &c., in Mahogany Cabinet . 42 



