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SECTION 17. MINERALOGY, CRYSTALLO- 

 GRAPHY, &c. 



WEST GALLERY, UPPER FLOOR, ROOM M . 



I. APPARATUS, INSTRUMENTS, &c. 



a. BLOWPIPE APPARATUS, &c. 



3422. Blowpipe Apparatus for determining minerals. Case 

 as supplied to the Arctic Expedition. J. R. Gregory. 



3423. Flattner's original Blowpipe. 



Royal Mining Academy, Freiberg, Saxony. 



3424. Complete Blowpipe Apparatus, according to Platt- 

 uer, consisting of a large case, with balance, instrument case, &c., 

 re-agent case, charcoal box, balance case, and leather cover. 



A. Litigke fy Co. (Max HUdebrand and Ernst Schramm), 

 Freiberg, Saxony. 



3425. Cabinet of Apparatus and reagents, for blowpipe 

 analysis. (Mineralogy.) James How fy Co. 



3426. " The Student's Pocket Blowpipe Case. 9 ' 



Thomas J. Downing. 



This comprises the following necessaries, carefully selected for the student's 

 use in the analysis of minerals : Blowpipe, candle, matches, charcoal, fluxes, 

 acids, bone ash, mould for making cupel, anvil, hammer (handle loose), file, 

 forceps, glasses for acids, streak plate, lens, platinum wire and foil, magnet, 

 and glass tubes. Fitted in japanned tin case, with fastening, and adapted 

 for the pocket. 



3427. Collecting Bag for the geological and mineralogical 

 collector. Thomas J. Downing. 



3428. Mohs' Scale of Hardness. Nine minerals, with file, 

 in polished case. Thomas J. Downing. 



3429. Von Kob ell's Scale of Fusibility. Six minerals, 



for determining the degrees of fusibility, in polished case. 



Thomas J. Downing. 



3430. Scale of Hardness. 



Royal Mining Academy -, Freiberg, Saxony. 



