CATALOGUE OF PHILOSOPHICAL APPARATUS. 13 



MINERAL COLLECTION. 



APPARATUS ROOM. 



Arranged after the chemical system of Rammelsberg, " Handworterbuch 



des chemischen Thiels der Mineralogie, Berlin 1841." 



In 7 7 drawers under the following heads : 



A. INFLAMMABLE MINERALS. 



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B. EARTHS NOT COMBINED WITH SILICA. 



C. MINERALS CONSISTING OF SILICA, EITHER ALONE OR IN COMBINATION WITH WATER. 



D. SlLICA IN COMBINATION WITH BASES. 



E. SILICATES WITH SALTS OF OTHER ACIDS. 



F. SlLIClOUS MINERALS OF INDEFINITE COMPOSITION. 



Gr. METALLIC ORES. 



A. INFLAMMABLE MINERALS. 



Drawers i to 4. Examples : Sulphur, graphite, amber. 



B. EARTHS NOT IN COMBINATION WITH SILICA. 



1 . Lime and its salts. 



Drawers 5 to 17. Examples: Calc spar, gypsum, apatite. 



2. Magnesia and its salts. 



Drawer 18. Examples. Dolomite, meerschaum, magnesite. 



3. Strontian and its salts. 



Drawer 19. Examples: Celestine, strontianite. 



4. Barytes and its salts. 



Drawer 20. Examples : Heavy spar, witherite. 



5. Alumina and its salts. 



Drawer 21. Examples: Wavellite, corundum, cryolite. 



