CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



1484. 

 1486. 



1488. 

 1490. 

 1492 

 1494. 

 1496. 

 1498. 

 1500. 



1502. 

 1504. 



1506. 

 1508. 

 1510. 

 300. 

 1514. 

 1516. 

 1518. 



No. 1518. 



CUPEL HOLDEK, on wooden support, -with two molds and stamp of brass, nickel-plated. 



Height, about 3y 2 inches $2.00 



FORCEPS, Blowpipe, nickel-plated, with platinum tips. Length 5% inches. Price dependent 

 upon market price of platinum. 



HAMMER, Plattner's, wooden handle 45 



LAMP, of polished brass 1.25 



MATRASSES, Glass, flask shape per dozen .72 



MATRASS HOLDER 40 



MINERALS for Blowpipe, 25 specimens, small size, in partitioned hardwood box 2.00 



MINERALS for Blowpipe, 50 specimens, small size, each in tray, all enclosed in oak box. . 3.00 

 MINERALS for Blowpipe, 100 specimens, including all but the very rarest, each in tray, all en- 

 closed in oak box 7.50 



PLATINUM WIRE, with solid glass handle, for borax beads, etc 85 



PLATINUM GOODS, see general heading Platinum Ware. 



REAGENTS, set of 14 one-ounce bottles filled with chemically pure blowpipe reagents, accord- 

 ing to Fresenius 4.50 



SCALE, Plattner's, of ivory, for silver beads 3.50 



SCALE of Hardness, without diamond, 9 specimens 2.00 



SILVER FOIL per ounce 2.00 



STREAK PLATE, unglazed porcelain, 60x100x4 mm thick 40 



TUBES, hard glass, 4x^4 inches, open at both ends per dozen .45 



TUBES, hard glass, 4x J /i inches, closed at one end ' per dozen .90 



BLOWPIPE SET of Apparatus and Reagents, as designed by Prof. Butler of the Colorado School 

 of Mines for use in the laboratory and field. The various pieces are compactly arranged in a 

 case with compartments and receptacles, especially designed to avoid breakage. Outside dimen- 

 sions, Il%x6%x2% inches. Complete with wet and dry fluxes, and with lamps for alcohol and 



oil 22.50 



The set contains the following pieces: 



1520. 



2 Sticks Charcoal 



6 Open Tubes 



Large Test Tube 



Small Test Tube 



Ammonium Hydrate 



Cobalt Nitrate 



Hydrochloric Acid 



Sulphuric Acid 



Nitric Acid 



Tin 

 POCKET HAND-BOOK OF BLOWPIPE ANALYSIS, by G. Montague Butler, M. E. ..... 1.00 



BOATS, Combustion, see Combustion Boats. 

 BOILERS, see Kettles. 

 BOLTING CLOTH, see Sieves. 



Blowpipe 



Platinum Wires and Holder 



Combination Charcoal Borer, 



Magnet and Chisel 

 Streak Plate 

 Blue Litmus 

 Red Litmus 

 Anvil 

 3 Arsenic Tubes 



Microcosmic Salt 



Sodium Carbonate 



Bismuth Flux 



Borax 



Potassium Bisulphate 



Oil Lamp (brass) 



Alcohol Lamp (brass) 



Hammer 



Platinum Tipped Forceps 



