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



No. 123. 



No. 128. 



No. 132. 



No. 134. 



123. ABSORPTION TUBE, Nesbitt's Improved, same as No. 122, but with inlet tube extended inside 



bulb and bent downward to diffuse gas through entire bottle $4.00 



124. ABSORPTION TUBE. Vanier's (patented), for the absorption of carbon dioxide in potassium 



hydroxide in determining carbon in steel by the combustion method. Designed by George P. 

 Yanier, Chief Chemist of the Pennsylvania Steel Company. Consists of a potash bulb and 



drying tube combined, capable of absorbing 100 combustions without refilling 10.50 



126. ABSORPTION TUBE, Wesson's, designed by L. G. Wesson, of the United States Bureau of 

 Standards. The apparatus weighs 20 to 25 grams empty. Will hold 35 grams of soda lime 

 and 7 grams of calcium chloride, and will absorb 10 grams carbon dioxide without renewal. 

 A capillary tube between the bulbs is substituted for a stopcock, making the outfit very light. 

 (See Journal of Industrial and Engineering Chemistrv, Vol. VI, No. 6, for June 1914, page 



461) 4.00 



For other ABSORPTION TUBES AND BULBS, see Calcium Chloride Tubes; Potash Bulbs. 

 ACID BASINS OR DISHES, see Dishes. 

 ACID JARS, see Jars. 



ACID MEASURES TOR MILB^ see Milk Testing Apparatus. 

 128. ACID PITCHERS, of stoneware, with handle. 



Capacity, quarts 124 



Each 40 .50 1.25 



130. ACID PROOF FINISH for chemical laboratory tables. While this preparation is not absolutely 

 acid proof, it is a finish which has been successfully employed for years in many of the leading 

 laboratories. Consists of two solutions with full directions for applying. The finished top will 



be black Per gallon (V 2 gallon of each solution) 2.50 



132. ACID PUMP, with force pump attached, for withdrawing acid from containers. Will fit any 



bottle or carboy having a neck from 1% to 2% inches diameter 8.00 



134. ACID PUMP for drawing acids and ammonia from carboys. Clamps hold it firmly to neck of 



carboy. Can be operated by Air Pump No. 1C986, or Foot Blower No. 1374 6.<X) 



136. ADAPTERS, curved, of light glass, lamp blown, bent at an angle of 45 degrees, for use with t 

 torts and condensers. 



No A B C D 



Length, mm 150 180 200 250 



Inside diameter at large end, mm 18 25 30 



Each 22 .25 .30 .35 



]38. ADAPTERS, same as No. 136, but straight. 



No A B C D 



Each .20 33. .28 .32 



