LABORATORY SUPPLIES AND CHEMICALS 



313 



4256 

 4257 



4258 



4260 



4262 



4264 



4266 

 4268 

 4270 



4256 



4257 



APPARATUS, Maharg's, for determination of ammonia in water, con- 

 sisting of 1000 cc. G. S. flask, etc., with mercury seal $ 8.00 



DISTILLING APPARATUS, For the determination of ammonia in water, 

 as used by the Department of Health of New York City, consisting 

 of a metal condenser with block tin condenser tube, eight Nessler 

 cylinders graduated at 50 and 100 cc. in revolving support. Com- 

 plete with flask, condenser, support; eight Nessler jars and support 



for same ; 15.00 



The Flask ot.ly 2.60 



The Condenser only 4.00 



The Support for Nessler Cylinders 3.00 



HEHNER'S COLORIMETER, see No. 3241 (f). 

 NESSLER'S JARS, see No. 234l(j). 



WEIGHING BOTTLES AND TUBES, see Bottles, Weighing. 

 WICKS, see Lamps. 



WIRE, Aluminum. 



B. & S. Gauge, No 16 18 20 22 24 26 



Per ounce $0.15 .15 .15 .20 .25 .30 



Per pound 1.00 1.00 1.00 1.20 2.00 4.00 



WIRE, Copper, on one pound spools, B. & S. Gauge. 



Number 12 14 16 18 20 22 24 26 



Per pound $0.75 .75 .75 .75 .75 .90 1.00 1.10 



Number 28 30 32 34 36 



Per pound $1.20 1.30 1.40 1.50 2.00 



WIRE, Copper, insulated, cotton covered, B. & S. Gauge. 



Number 16 18 20 22 24 26 28 30 



Per pound $1.00 1.00 1.25 1.25 1.35 1.50 1.60 2.00 



Number : ,. . 32 34 36 38 40 



Per pound $2.30 3.75 5.00 15.00 20.00 



WIRE, Copper, insulated, silk covered. 



Number 16 18 20 22 24 26 28 30 



Per pound $1.552.002.252.502.753.00 3.25 4.50 



Number 32 34 36 38 40 



Per pound $5.00 6.00 9.00 18.00 30.00 



WIRE, German Silver, plain or covered, prices on application. 



WIRE, Iron, chemically pure, for standardizing, per pound $1.50 



WIRE. Nickel, per ounce 30 



Per pound 3.50 



PLATINUM, see Platinum Wire. 

 WIRE GAUGE, see Gauge. 

 WIRE GAUZE, see Gauze. 



