220 



A. DAIGGER & COMPANY, CHICAGO, U. S. A. 



3554 



3556 



3539 



3557 



3557(a) 



3539 NITROMETER, duPont's. A most accurate apparatus for the analysis 

 of nitric acid and mixed acids; used by many manufacturers of ex- 

 plosives, etc. Complete set of glass parts $26.00 



3541 Ditto, separate glass parts. 



E B D J E F C 



$2.00 2.50 6.50 7.50 2.00 0.60 7.00 



3554 KJELDAHL'S Connecting Bulb Tubes, 50 c.c., each 50 



3556 KJELDAHL'S Connecting Bulb Tubes, Hopkins' form v . . .50 



3557 KJELDAHL'S Connecting Bulb, Kjeldahl's, modified by C. A. Jennings, 



having a tubule in the bulb, and designed especially for water analysis; 

 allows of the introduction of water or permanganate solution without 

 removing the stopper, eliminating the danger of the introduction of 

 ammonia into the flask 75 



3557(a) KJELDAHL'S Connecting Bulb, Brown's, cylindrical shape 80 



Nitrogen Bulbs, see Bulbs. 



OIL TESTERS 



3559 



3559(a) 



3559 ELLIOTT Tester for flash points of illuminating oils only, with standard 



thermometer 15.60 



3559(a) FOSTER Tester for flash points of illuminating oils only, with standard 



thermometer . ..18.00 



