CENTRAL SCIENTIFIC CO., CHICAGO. U. 8. A. 



161 



Nos. 3138-40. 



3138. COMBUSTION APPARATUS, Vanier's, for determining carbon in iron and steel by the combus- 

 tion method. Complete as illustrated, with Hoskins Electric Combustion Furnace with rheo- 

 stat, two four-liter aspirator bottles, potash bulb, calcium chloride tube, fused silica combus- 

 tion tube, zinc tube, sulphuric acid bulb, Vanier 's Combined Absorption Bulb and Drying Tube 

 (patented), two 3%x% inch Alundum combustion boats, % Ib. of E. B. Alundum and with 

 necessary connecting tubing, supports, clamps, glass rods, etc., but without oxygen tank. 



No A B 



With furnace for, volts 110 220 



Each $62.00 62.00 



3140. COMBUSTION APPARATUS, Vanier's, same as No. 3138, but with Multiple Unit Electric Com- 



bustion Furnace No. 6226. 



No A B 



With furnace and rheostat for, volts 110 220 



Each 62.00 62.00 



Parts for Vanier Combustion Apparatus. 



Hoskins Electric Combustion Furnaces. 



No A B 



For volts 110 220 



6210. Furnace only 25.00 25.00 



6211. Furnace with rheostat 33.50 33.50 



Multiple Unit Electric Combustion Furnace, for use on either 110 or 220 volts. 



6226. Furnace only 25.00 



6227. Furnace with rheostat (voltage must be specified) 33.50 



1614F. Aspirator Bottles (H), four -liter, with rubber tube outlet at bottom, for use in keeping pressure 



constant, the lower one being filled with water each 1.75 



3141. Potash Bulb (A), for purifying oxygen before entering tube 70 



2320A. Calcium Chloride Tube (B), for drying the oxygen gas 1.40 



3186B. Combustion Tube (D), of Opaque Fused Silica, glazed, 24 inches long and % inch inside diameter 



6.00 



3143. Vanier Zinc Tube (E), to be filled with granulated zinc for removing sulphur and acid fumes 1.10 



3144. Vanier Sulphuric Acid Tube (F), for absorbing moisture 1.90 



124. Vanier Absorption Bulb (G), for carbon dioxide, a combined potash and drying tube, to be 



weighed for determining percentage of carbon in sample 10.50 



No. 3152. 



No. 3150. 



3150. COMBUSTION BOATS, of Alundum, especially adapted for the determination of carbon in iron 



they may be used repeatedly. 

 With handle. 



3152. 



and steel. Since the alundum is not affected by iron oxide 



Furnished in fine mixture only. Thickness of wall, ^ inch. 



No '. A B C D E 



Length, inches 3V 2 3% 4^ 5 5% 



Width, inches V 2 % % % % 



Depth, inches <K 6 % ft e ifa ^ 6 



Each 30 .35 .40 .40 .40 



COMBUSTION BOATS, Porcelain, glazed throughout, with ring handle. 



No A B C D E 



Length, mm 60 60 75 75 100 



Width, mm 7 10 11 15 18 



Each . 22 .22 .24 .26 .28 



