I. RESEARCH. 479 



Four platinum bottles containing pure fluorides of sodium, cerium, manga- 

 nese, aud bismuth. 



Four gutta-percha bottles containing fluorides of glucinum, thallium, and 

 cadmium, and the double fluoride of hydrogen and tellurium. 



Two glass bottles containing fluorides of lithium and rubidium. 



Used in researches on the fluorides. (See Philosophical Transactions of 

 the Royal Society, 1869.) 



2419b. Specimen of Alibert's Native Graphite, from 

 Mount Batougal, Irkoutsk, Siberia. George Gore, F.R.S. 



241 9c. Bottles (53) containing Fluorides used in re- 

 searches on the Fluorides. George ^Gore, F.R.S. 



37 gutta-percha bottles, 12 glass ditto, and 4 platinum ditto, containing 

 various pure fluorides used in researches on anhydrous hydrofluoric acid and 

 the fluorides. (See Philosophical Transactions of the Royal Society, 1869.) 



2419d. Vessels and Articles (35) of baked and fused fluo- 

 ride, cryolite, fluor-spar, native graphite, gas carbon, and wood 

 charcoal, for researches on Fluorides. George Gore, F.R.S. 



13 boats formed of baked and fused fluorides. 

 6 fluoride of calcium. 



fluor-spar, 

 cryolite. 



native graphite, 

 wood charcoal. 



1 



1 



1 tube 



1 crucible gas carbon. 



1 cup 



4 plates polished fluor-spar. 



All these articles for use in researches on the fluorides. (See Philosophical 

 Transactions of the Royal Society, ] 869.) 



2419e. Three Specimens of Melted Silicon in bottle. 



George Gore. F.R.S. 



241 9f. Vessels and Articles of wood-charcoal, native gra- 

 phite, and gas carbon, used in researches on the Fluorides. 



George Goie, F.R.S. 



11 crucibles of wood charcoal, in bottle. 

 9 boats of native graphite, in box. 



2 rods of lignum vitae charcoal 

 1 boat of gas carbon. 



Used in researches on the fluorides. (See Philosophical Transactions of 

 the Royal Society, 1869, &c.) 



2419g. Glass Vessel for collecting and Measuring Gases. 



George Gore, F.R.S. 



2419h. Glass Beehive Shelf used in collecting Gases. 



George Gore, F.R.S. 



24191. Specimens of Native Bock Salt from Jhelum, in 

 Cabul 5 Afghanistan ; Wielicska, in Poland ; and Erfurt, in 

 Prussia. George Gore, F.R.S. 



2419k. Specimens of Native Iron. George Gore, F.R.S. 



