88 L. CASELLA'S CATALOGUE 



843. Universal Sun Dial, with improved gnomon, bar needle, two levels, and 



adjusting screws, in morocco or mahogany case, 2^-inch., divided circle, 



3 8 ; 3-inch., 3 15 ; 3i-inch., 4 4 0; 4i-inch. 550 



In ordering either of the above, it should be stated whether it is for north or south 

 latitude. 



844. UNIVEESAL SUN DIAL, as above, but divided to serve for both latitudes : 2i-inch., 



divided circle, 4 4 ; 3-inch., 4 12 ; 3i-inch., 5 ; 4i-inch. 660 



845. Universal Ring Sun Dial, in the form of a ring, answering for both latitudes, 



in polished mahogany case, 3 inch, to 5 minutes, 1 14 ; 4 inch., 2 2 ; 

 6 inch, to 2 minutes . . . . . . 2 15 



846. CEUCIAL SUN DIAL, in bronze (fig. 846), p. 88. In this interesting arrangement the 



figures and divisions are marked on the sides of the cross, the angles and 

 corners serving as the gnomon, the adjustment consists in simply raising it to 

 the co-latitude of the place in which it is used, it thus becomes truly universal, 

 and suited alike to both latitudes, 12 inch, by 9 inch. . 880 



847. CEUCIAL SUN DIAL, as above, 3^ inch, by 2^ inch., in leather case for the pocket 



2 10 

 Horizontal Sun Dials, for Gardens or Lawns, brass. 



848. 6 inch., divided to 5 minutes 1 1 



849. 8 inch., divided to 5 2 10 



850. 12 inch., divided to 2 minutes 4 4 

 852. 15 inch., divided to 2 5 15 



Horizontal Dials, very superior, with Equation Table, brass. 



853. 10 in., divided to 2 minutes 3 12 I 855. 15 in., divided to 1 minute 710 



854. 12 in., divided to 1 minute 5 5 | 856. 18 in., divided to 1 1215 



*** Pedestals for dials and vertical dials made to order. 



NAUTICAL INSTRUMENTS. 



SEXTANTS AND QUADRANTS, 



Including such only as combine the latest improvements and are in constant general 

 use. The metal quadrant having greatly supplanted those in ebony, has in no way 

 however lessened the care given to their construction ; the rigidity and seasoning of the 

 wood in these instruments will therefore be found to adapt them to the utmost for the 

 varying climates in which they are used. 



857. Pillar Sextant (superior), 7-inch, radius, divided on silver, with verniers 



reading to ten seconds, four telescopes, spring tangent screw, seven neutral 

 shades, star finder and swing reflector, very superior, in best polished 

 mahogany case '-V . -.' . . . 15 10 



858. PILLAE SEXTANT, as above, with platinum arc and gold verniers 17 10 



859. BEST PLAIN PILLAE SEXTANT, with four telescopes, best colored shades, divided 



on silver to ten seconds, with swing reflector ' ." ' .- . 12 



860. METAL SEXTANT, with bridge handle, very superior, with capped adjustment, spring 



tangent screws, four telescopes, seven shades neutral tint, divided on silver to 

 ten seconds, with swing reflector, in polished mahogany case 11 10 



If with star finder, 12s. 6d. extra. 



