CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 521 



14376. WAX, Bees', Genuine, unbleached, in cakes Per Ib. $1.00 



14377. WAX, Bees', Imitation (ceresin), yellow Per Ib. .40 



14378 WAX, Sealing, express, red, four sticks to the pound Per Ib. .55 



14380. WAX, Universal, for use in t!ie laboratory wherever a plastic yet firmly adhesive cemeut is 



needed. In 4-ounce jars Per jar .30 



14382. WAX TAPEES, for burning in oxygen, etc., in boxes of 12 P-jr box .10 



14390. WEATHER FORECAST CHART," or Key to Barometer Reading, and Chart for Aneroid Bar- 

 ometer, by J. Benj. F. Rawson, late of the Weather Bureau. This chart is intended as an aid 

 in the intelligent interpretation of barometer readings and in forecasting weather for twenty- 

 four hours. This chart will be found quite accurate and most useful in any science labora- 

 tory. With full directions -50 



14392. "WEATHER AND WEATHER INSTRUMENTS. " This book describes the mechanism of the 



many instruments and in addition gives in concrete and simplified form the practical uses of 

 the different instruments. The tables of classified data recommend it particularly to teachers. 

 Pasteboard covers -50 



14393. "WEATHER AND WEATHER INSTRUMENTS," same as above, cloth covers 1.10 



14396. "PRACTICAL HINTS for Amatsur Weather Forcasters." Information on the care and ex- 

 posure of barometers. 24 pages, illustrated -10 



WEIGHING BOTTLES, see Bottles. 



WIRE, ALL KINDS 



14410. WIRE, Aluminum, bare. 



B. & 8. No 14 16 18 20 22 24 26 27 28 30 



Approx. diameter, inches.. .064 .051 .040 .032 .025 .020 .016 .014 .013 .010 



Per 4 oz. spool 1.50 1.80 2.10 2.40 3.75 



Per 1 Ib spool 2.45 2.70 2.85 3.30 3.90 5.10 



14412. WIRE, Brass Spring, on 4-ounce spools. 



Washburn & Moen No.. 16 18 20 22 24 26 27 28 30 32 34 36 

 Approx. diam., inches.. .063 .047 .035 .028 .023 .018 .017 .016 .014 .013 .010 .009 

 Approx. feet per spool. 20 33 68 108 170 270 340 430 550 862 2270 3520 

 Per spool 40 .40 .40 .45 .55 .60 .66 .66 .70 .80 1.10 1.80 



14416. WIRE, Copper, Annunciator Wire, double cotton covered and paraffined. Orders not accepted 

 for less than 1 Ib. 



B. & 8. No 16 18 20 22 24 



Approx. feet per pound 106 157 230 350 550 



Per pound 1.45 1.50 1.55 1.65 1.70 



14418. WIRE, Copper, Lamp Cord, composed of fine wires insulated with rubber and braided cotton; 

 two conductors twisted. 



B. & S. No 16 18 20 22 



Per foot 10 .05 .05 .05 



WIRE, Copper, Magnet Wire. 



B. & 8. No... 10 12 14 16 18 20 22 24 26 27 28 30 32 34 36 40 

 Approx. diam., 



inches 102 .081 .064 .051 .040 .032 .025 .020 .016 .014 .013 .010 .008 .006 .005 .003 



14422. BARE WIRE. 



Per 4 oz. spooL 65 .65 .65 .65 .65 .70 .751.00 



Per 8 oz. spool 95 .951.001.001.051.101.20 .... 



Per 1 Ib. spooL 1.40 1.40 1.40 1.45 1.45 1.45 1.50 1.55 1.55 1.60 1.60 1.65 1.70 1.80 1.90 .... 



14423. D. C. C. WIRE. 



Per4oz. spooL 75 .80 .90 .95 1.05 1.10 1.15 1.30 1.50 1.70 2,00 4.35 



Per 8 oz. spool 1.20 1.25 1.45 1.65 1.80 1.90 1.95 2.30 2.65 3.05 3.65 .... 



Per 1 Ib. spool. 1.60 1.65 1.70 1.80 1.90 2.15 2.45 2.70 3.00 3.25 3.40 3.90 4.60 5.50 6.70 .... 



14424. D. S. C. WIRE. 



Per4oz. spooL 95 1.05 1.25 1.40 1.50 1.60 1.95 2.45 3.25 3.95 7.90 



Per 8 oz. spool 1.40 1.60 1.80 2.15 2.45 2.70 2.90 3.60 4.55 6.25 7.55 .... 



Per 1 Ib. spool 2.30 2.45 2.80 3.20 3.75 4.40 4.85 5.25 6.55 8.4511.8514.45 ... 



14428. WIRE, Copper, Magnet Wire, Enameled. The enamel insulation is an elastic yet resistant and 

 firmly adhering film. This insulation is exceedingly inert toward the ordinary agencies met in 

 practice, which cause silk or cotton insulation to rapidly deteriorate and lose their value as in- 

 sulating mediums. Impervious to moisture. Requires less winding space. Positive dielectric 

 strength. More feet to the pound. 



B. & S. No 26 28 30 36 40 



Feet per oz 80 128 200 800 2000 



Per 4 oz. spool .75 .75 .80 1.05 1.75 



Per Ib. spool 1.85 1.95 2.00 2.90 5.45 



14430. WIRE, Copper, Rubber Covered. 



B. & 8. No 12 14 16 



Per foot 06 .05 .05 



14432. WIRE, Copper, Soft, bare, on 4-ounce spools. 



Washburn & Moen No.. 16 18 20 22 24 26 27 28 30 32 34 36 

 Approx. diam., inches.. .063.047.035 028 .023 .018 .017 .016 .014 .013 .010 .009 



Feet per spool 20 32 66 102 160 260 325 410 510 810 2050 3175 



Per SDOol 40 40 .40 .45 .55 .60 .66 .66 .70 .80 1.10 1.80 



For WIRE TABLES, see pages 527-8. 



