576 SEC. 13. CHEMISTHY. 



2562. Hofmann's Vapour Density Apparatus. 



Julius Schober, Berlin. 



2411. Apparatus for rapidly saturating a small quantity of 

 a liquid with a gas. Rough model. George Gore, F.R.S. 



2412. Apparatus for rapidly saturating a small quantity of 

 a liquid with a gas. George Gore, F.R.S. 



2413. Apparatus for preparing small quantities of liquid car- 

 bonic acid gas, or liquid hydrochloric acid gas, and examining 

 its action upon various substances. George Gore, F.R.S. 



(Philosophical Transactions of the Royal Society, 1861, and Proceedings of 

 the Royal Society, May 1865.) 



2414. Apparatus for preparing small quantities of liquefied 

 cyanogen or liquefied ammonia gases, and examining their action 

 upon various substances. George Gore, F.R.S. 



(Proceedings of the Royal Society, Vol. 20, p. 67 ; also No. 141, 1873.) 



2415. Bod of Selenium, eight feet high, used in some ex- 

 periments upon light. George Gore, F.R.S. 



2419. One hundred and eleven vessels and articles of 

 Platinum (weight 117^ ounces), used in Researches on Anhy- 

 drous Hydrofluoric acid and the Fluorides. 



George Gore, F.R.S. 



2419a. Pure Fluorides in bottles of platinum, &c., used in 

 researches on the Fluorides. George Gore, F.R.S. 



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

 nese, and bismuth. 



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

 cadmium, and the double fluoride of hydrogen and potassium. 



Tvro glass bottles containing fluorides of lithium and rubidium. 



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

 the Royal Society, 1869.) 



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

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



2419c. 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. 



