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



No. 1454. 



1438. BLOWPIPE, Black's, japanned tin, removable brass tip. Length, 8% inches $0.20 



1439. BLOWPIPE TIPS for No. 1438 Per dozen 1.00 



1442. BLOWPIPE, Black's, new form, of brass, with removable tip that unscrews and wooden mouth- 

 piece. Length, S 1 /^ inches .70 



1444. BLOWPIPE, Brazing, of brass with stopcocks for air and gas. Requires % inch gas supply. Size 



of air tube, $i 6 inch; of gas tube, % 6 inch; length over all, 14 inches 3.00 



1446. BLOWPIPE, Fletcher's Hot Blast, of brass. Length, 10% inches 80 



1448. BLOWPIPE, General Laboratory, of brass nickel-plated. The most convenient form of hand 

 blowpipe or blast; of very light weight. Provides intensely hot flame, which is easily regu- 

 lated in size and intensity from the finest needle flame to a large brush, by means of stop- 

 cocks on the air and gas tubes. Especially valuable in sealing glass and in repairing large 

 pieces not easily handled. Total length, 9 inches; weight, 4% ounces 5.00 



1450. BLOWPIPE, Oxy-Hydrogen, all brass, on stand, with removable lime cylinder holder and two 



stop-cocks 8.00 



1451. BLOWPIPE only of No. 1450 7.00 



1454. BLOWPIPE, Planner's, of brass nickel-plated, with hard rubber mouthpiece, but without plati- 



num tip 1.70 



1455. BLOWPIPE TIP, of Platinum, for No. 1454, seamless, with small uniform hole. Price depend- 



ent upon the market price of platinum. 



1458. BLOWPIPE, Plattner's, brass, with hard rubber mouthpiece, fitted with side arm with stop-cock 

 for attaching directly to gas supply, giving a very powerful blowpipe flame 3.00 



BLOWPIPE APPARATUS 



BLOWPIPE TIPS for burners, see Nos. 2228 and 2230. 

 BUNSEN BUENEB for blowpipe work, see general heading Burners. 



1464. BUTTON BRUSH 60 



1466. CARBON BLOCK, molded 65 



1467. CARBON BLOCK HOLDER .36 



1468. CARBON CYLINDER, molded, I%x3 inches .55 



1470. CHARCOAL BORER, club shape 1.00 



1472. CHARCOAL BORER, four cornered 70 



1474. CHARCOAL HOLDER, with platinum wire and shield 3.00 



1476. CHARCOAL SQUARES, with covers, for charcoal holder Each .40 



1478. CHARCOAL STICKS, natural willow wood, 4xlx% inches Per dozen .50 



1480. CLAY CAPSULES Per dozen .60 



1482. CLAY CRUCIBLES Per dozen .70 



CUPELS, Bone Ash, see No. 3628. 



