310 



NEGRETTI AND ZAMBRA, HOLBOE5T VIADUCT, B.C., 



FIG. 1301. 



1300 



1302 

 1303 



1304 

 1305 

 1306 

 1307 

 1308 

 1309 

 1310 

 1311 

 1312 

 1313 

 1214 



Pillar or Double Platecl {Sextant, 8-incli, reading to ten seconds, with addi- 

 tional power to telescope and Reflectors to verniers, &c., of the very best 

 quality, in Best Square Polished mahogany case (fig. 1301) . 17 17 0> 



POCKET SEXTANTS 1 



FIG. 1303. 



Pocket or Box Sextant, with Back-work adjustment . 



Pocket Sextant, best quality, divided on Silver, with 

 Telescope and Tangent adjusting screw, &c. (fig. 1303), 

 with leather case and strap 



Ditto, ditto, with Cover, divided, hypo and base . 



Horizon Glasses, for Quadrants . . . pei doz. 



Index ditto for ditto . ... 



Coloured Shades, for ditto . . . per set of 7 



Horizon Glasses for Sextants . . . per doz. 



Index Glssses for ditto 



Neutral Coloured Shades, best parallel, per set of 7 



Sets of 3 Achromatic Telescopes for Sextants, best 



Extra Power for ditto 



Star Telescopes for Sextants ...... 



Horn (Index) Magnifiers . . . .per doz. 



440 



550 

 5 15 

 12 

 140 

 14 



1 10 



2 2 



160 

 110 



060 

 15 

 15 



