CENTRAL SCIENTIFIC CO., CHICAGO. U. 8. A. 



No. 120. 

 ABDERHALDEN REAGENTS, see Blood Testing Apparatus. 



102. ABSORBENT COTTON, best quality. 



Size of package, ounces 1 4 1 (i 



Each $0.10 .20 .35 .65 



ABSORPTION APPARATUS for Chlorine, see No. 2828. 



106. ABSORPTION TUBE, Babo's, filled with glass beads. Total length, 13 inches; diameter of body, 

 1 inch. Will take an 8 inch column of beads $3.25 



108. ABSORPTION TUBE, Camp's. Length of body, 13 inches; diameter, 1\{ 6 inch 3.00 



110. ABSORPTION TUBE, Emmerling's, filled with glass beads. Total length, 15% inches; diam- 

 eter of body, 1 inch. Will take an 8 inch column of beads 3.90 



112. ABSORPTION TUBE, Fisher's, for the absorption of carbon dioxide or water in elementary 

 organic analysis in place of the usual U tubes. It has the following advantages: 30 cc capac- 

 ity instead of 22 cc of the ordinary 11 cm U tubes; more easily and thoroughly cleaned; 

 only one hollow stopper which shuts off both openings with one turn; will stand on the bal- 

 ance pan; and needs no hangers when joined in the absorption train. When filled, the bottle 

 weighs about 65 grams. (See Journal of Industrial and Engineering Chemistry, Vol. VIII, No. 

 4, for April 1916, page 368) 5.00 



114. ABSORPTION TUBE, Fleming's, for carbon determinations in iron and steel by the combustion 

 method. Very rapid and exact, retaining every trace of carbon dioxide and moisture. One 

 charge of soda lime will absorb 100 combustions, or one charge of phosphorus pentoxide 300 

 combustions on a 1.5 gram sample of 0.75 per cent, carbon steel 6.00 



116. ABSORPTION TUBE, Hinman's, used extensively for the determination of ammonia in illumin- 

 ating gas 75 



118. ABSORPTION TUBE, as used by the Illinois Steel Company for absorptions in barium hydrox- 

 ide, consisting of 9 bulbs with bent stem, for use with a 500 cc Erlenmeyer flask. Total length 

 of tube, 20 1 /> inches. Without flask. (See Journal of Industrial and Engineering Chemistry, 

 Vol. VI, No. 10, for October 1914, page 844) 1.25 



120. ABSORPTION TUBE, Meyer's, for the absorption of carbon dioxide in barium hydroxide; as 

 described in Standard Methods for Chemical Analysis of Plain Carbon Steel, adopted in 1914 

 by the American Society for Testing Materials. Consists of a series of 10 small bulbs hold- 

 ing from 10 to 15 ce each, with large bulbs at the ends having a capacity equal to that of the 

 small bulbs combined 2.60 



122. ABSORPTION TUBE, Nesbitt'S, for the absorption of carbon dioxide in soda lime in the deter- 

 mination of carbon in iron and steel, designed by C. E. Nesbitt, chief chemist of the Carnegie 

 Steel Company, Edgar Thomson Works. A slight turn of the stopper closes inlet and outlet 

 tubes, sealing the bulb for weighing. The bulb filled weighs about 135 grams. Very rapid, 

 enabling combustions to be run in 6 minutes. As many as 100 combustions may be run on a 

 0.50 per cent, carbon steel with 1.5 gram samples without refilling 3.50 



