390 



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



No. 9930. 



No. 9988. 



9930. OVENS, Despatch Electric, for Temper Drawing, Enameling, Core Baking, e'.c., built of galvan- 

 ized iron re-enforced at the edges with angle iron and finished in dull black enamel. Equipped 

 with Open-Wire Electric Heaters for temperatures up to 700F. The walls are double packed 

 with three inches of asbestos for insulation. Provided with switches to control temperature, 

 and with ventilators in top and bottom. Maximum current consumption, 3 kilowatts per 

 hour. Outside dimensions, 32x40x26 inches; inside dimensions, 24x24x18 inches; weight 

 crated, 400 pounds. Complete with 6 shelves of woven wire, re-enforced to prevent sagging. 



No A B 



For volts HO 220 



Each $145.00 145.00 



OVEN THERMOMETERS, see general heading Thermometers. 

 For OZONATOR, Electric, see page 389. 



9950. OZONE APPARATUS, Siemens', for showing the formation of ozone by the discharge of an elec- 

 tric current. Complete with wooden support 7.00 



9951. OZONE TUBE, Siemens', glass tube only of No. 9950, without foil 3.50 



9980. PAILS, White Enameled, Seamless, with cover of same, for laboratory waste. Capacity, 3 



gallons each 2.60 



PALLADIUM TUBE, see Gas Analysis Apparatus. 

 PALM GLASS, see Pulse Glass. 

 PANS, Baking, see Plour Testing Apparatus. 

 PANS, Gluten Washing, sec Flour Testing Apparatus. 

 PANS, Gold Washing, see Nos. 7284 and 7286. 



9988. PANTOGRAPH for enlarging or reducing maps, drawings, etc. Brass mounted; black figures on 

 highly polished hardwood; movable point. A very neat and substantial instrument. Furnished 



complete with pencil holder, but without drawing board 1.50 



PAPER, Adams, for Milk Analysis, see No. 9266. 

 PAPER, Asbestos, see Asbestos Paper. 



9992. PAPER, Blue Print, 30 inches wide, in 10 yard rolls Per roll 1.00 



9994. PAPER, Blue Print, in light-proof packages of 24 sheets. 



Size, inches 4x5 5x7 5x8 8x10 



Per package 20 .22 .25 .35 



9998. PAPER, Carborundum, in sheets 9x11 inches. 



No 000 00 



Per sheet .05 .05 .05 



Per quire 1.00 l.CO 1.00 



1 



.06 

 1.25 



.06 

 1.00 



10000. PAPER, Congo Red, in sheets 11x17 inches Per sheet 



PAPER, Cross Section, see Cross Section Paper. Per quire 



PAPER, Drawing, see Drawing Paper. 

 PAPER, Emery, soe Emery Paper. 

 PAPER, Filter, all kinds, see Filter Paper. 

 10004. PAPER, Glazed, for collecting filter ashes, etc., in sheets 20x24 inches. 



No A B C 



Color , black white yellow 



Per quire .60 .40 .60 



10008. PAPER, Litmus, blue, in sheets 8x10 inches Per sheet .05 



Per quire .80 



10010. PAPER, Litmus, blue, in books of 50 strips Per book .06 



Per dozen books .60 



10012. PAPER, Litmus, blue, in glass vials containing 100 strips Per vial .10 



Per dozen vials 1.05 



