154 



L. CASELLA'S CATALOGUE 



FIG. 1829. 



FIG. 1827. 



FIG. 1825. 



FIG. 1822. 



1817. Oxy-Hydrogen Microscope^ suitable for No. 1816 lantern, with three magni- 



fying powers, aninialculse, flat cell for live animalcules, the decomposition of 

 water by voltaic action, etc., complete in mahogany case with lock and key 



7 10 



1818. KALEIDOSCOPE for ditto, complete in mahogany case with slide 2 20 



1819. POLAEISCOPE, with rack adjustment . . . . 880 



1820. OBJECTS for ditto, from 3s. 6d. to 10s. each. 



1822. 



1823. 

 1824. 

 1825. 

 1826. 

 1827. 

 1828. 



1829. 



1830. 

 1832. 



1833. 

 1834. 



1835. 

 1836. 

 1837. 

 1838. 



1839. 



MAGIC LANTERN APPARATUS. 



IMPROVED VULCANIZED INDIARUBBEE GAS BAG, wedge-shape, with stop-cock, 



size 38 by 26, and 20-inch, wedge (Jig. 1822) . . 330 



Pressure Hoards, jointed, for the above . . . 12 6 



SOLID INDIABUBBEE TUBING, T 5 inch, per foot . . 00 



IEON RETOET (fig. 1825), with tube for making oxygen gas . 12 



GAS MIXTUEE for making oxygen gas, per Ib. . . " ' '. " 01 



ZINC PUEIFIEE (fig. 1827) for the above retort . . 04 



0\y calcium, or House Gas Jet (fig. 1828), p. 151, with stop-cocks and platinum 



nipple to be connected with an ordinary gas burner . ; 16 



OXYCALCIUM, OE SPIEIT LAMP JET (fig. 1829), with platinum nipple, to be 



used when house gas is not available. . . . 16 



LIME CYLINDEES, in one dozen tins, soft, 2s. ; hard . . 026 



MICEOSCOPE, IMPEOVED, with two powers, to attach to any of the lanterns for 

 exhibiting insects, wings, sections of wood, etc. , . 1 18 



OBJECTS FOE THE GAS MICEOSCOPE, prepared in Canada Balsam, consisting of 

 insects, wood sections, ferns, etc., each . . . 2 



Improved Solarized Argand Fountain Lamp, with silvered reflector, lamp glass, 

 and cotton stick . . . . . ''".'- 12 6 



IMPEOVED SOLAEIZED AEGAND FOUNTAIN LAMP, for 4| inch, lantern 17 6 

 LAMP GLASSES for the 3-inch. phantasmagoria lantern, each . 8> 



LAMP COTTONS ,. per dozen 10' 



TEANSPAEENT SCEEENS for exhibiting the pictures through the sheet by any of 

 the apparatus, 7 feet square, 8s. 6d. ; 10 feet . . . 15 



OPAQUE SCEEENS of canvas, covered with paper and mounted on roller, for ex- 

 hibiting pictures on the sheet, 7 feet square, 14s. 6d. ; 10 feet 180 



