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



331 



No. 8200. No. 8202. No. 8211. 



8178. LABELS, Gummed, Microscope Slide, same as No. 8176, but rectangular, 22x15 mm, in boxes 



of 100 per box .10 



8190. LACQUER, Colorless, for preserving polished metal surfaces. In ounce bottles. .Per ounce .30 



8192. LACQUER, Gold, in 1 ounce bottles .Per ounce .40 



LACQUER BRUSH, see Brush, Lacquer. 

 LACTOMETERS, see Hydrometers. 

 8194. LADLES, of wrought iron with handle and lip. Useful for fusing metals. 



Diameter of bowl, inches 2% 4 



Each . . ; 35 SO 



LAMPS, Alcohol, see general heading Burners. 

 LAMPS, Microscope, see Microscope Accessories. 



LAMPS, INCANDESCENT 



In selecting incandescent lamps from those listed below, attention should be paid to the fact that 



the consumption of carbon filament lamps is approximately 3 watts per candle power, while that of 



tungsten filament lamps is approximately H4 watts per candle power. 



SI 96. LAMPS, Incandescent, Miniature, tungsten filament, threaded base to fit No. 5124 Receptacle. 



No A B C 



Candle power 1 1% 4 



Voltage 2V> 3^, 6 



Each $0.25 .30 .35 



S19S. LAMPS, Incandescent, tungsten filament, Edison base to fit all Edison receptacles and sockets. 



No A B 



Candle power 4 6 



Voltage 6 8 



Each 60 .60 



8200. LAMPS, Incandescent, carbon filament, 110-volt, Edison base to fit all Edison receptacles and 



sockets. No A B 



Candle power 16 32 



Each 28 .50 



8202. LAMPS, Incandescent, tungsten filament, 110-volt, Edison base to fit all Edison receptacles and 



sockets. No A B C 



Watts 20 25 40 



Each 45 .45 .45 



8204. LAMPS, Incandescent, tungsten filament, nitrogen filled, 110-volt, Edison base to fit all Edison 



receptacles and sockets. No A B 



Watts 75 100 



Each 90 1.50 



8206. LAMPS, Incandescent, colored glass, carbon filament, 110-volt; natural colors, not dipped; 16 e. p., 

 Edison T>ase to fit all Edison receptacles and sockets. 



No A B C D E 



Color amber blue green ruby frosted white 



Each 80 .50 .55 .55 .45 



8208. LAMP, Pocket Flash, for use in store rooms. Vulcanized fiber case with nickel-plated trimmings. 



Size. l 1 -.x6 1 -> inches, with tungsten bulb and battery 1.20 



8209. BATTERY for" No. 8208, for replacement 30 



8210. INCANDESCENT BULB for No. S208, for replacement 13 



8211. LAMP, Standard Incandescent, carbon filament, approximately 110 volts, 16 c. p., 64 watts, for 



stationary use. With certificate of candle power from the Electrical Testing Laboratories. 



Accuracy of rating, *% 2.70 



LAMPS, Standard Incandescent, tungsten filament of special construction to obviate variable 

 cooling of filament when it touches its anchor wires. More satisfactory as light standards 

 than carbon filament lamps. With certificate of candle power from the Electrical Testing 

 Laboratories. Accuracy of rating, ^{0%. In ordering, specify the voltage at which the lamp 

 should be standardized. This may be between 100 and 130 volts. 



No A B C D E 



Watts 25 40 50 60 100 



8212. LAMPS for stationary use 6.75 6.75 6.75 6.75 7.80 



8213. LAMPS for rotating." 6.75 6.75 6.75 6.75 7.80 



