248 



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



No. 5694. No. 5698. No. 5704. No. B708. 



5674. FLASKS, for Iodine Number Determination of Oils, Resistance Grade, Erlenmeyer form, with 

 flaring lip and hollow stopper ground deep in neck to form reservoir. 



Capacity, cc 125 250 500 



Each $0.90 1.00 1.20 



5678. FLASKS, Joliet, for use in analysis of iron and steel. Of heavy glass, made to resist heat. 



Capacity, cc 500 1000 2000 



Each .29 .43 .60 



5682. FLASKS, Kjeldahl, Pyrex Glass, with long neck and round bottom.- 



Capacity, cc ~. . 300 500 800 



To take rubber stopper, No : 5 6 6 



Total length, mm 298 327 365 



Number in original case 60 36 36 



Each .28 .37 .45 



Per dozen in original case 3.02 4.00 4.86 



5686. FLASK, Kjeldahl, Copper, heavy, with flat bottom. Diameter, 4 inches; height, 8% inches; 



capacity, 1000 cc 4 25 



5690. FLASKS, Low's, for Copper Determinations Pyrex Glass, improved form, with flaring neck. 



Capacity, cc 180 250 



Number in original case 144 108 



To take rubber stopper, No 5 6 



Each 25 .30 



Per dozen in original case 2.70 3.24 



5694. FLASKS, Melting Point or Oxygen, of Pyrex Glass, with long necks. Can be used for high tem- 

 peratures. Capacity, cc 125 250 500 1000 



Each 19 .26 .37 .56 



5698. FLASK, Moisture, of Pyrex Glass, for use in official Brown-Duvel Moisture Tester for determin- 

 ing moisture in grain. Capacity, 1000 cc. (See Circular No. 72, Bureau of Plant Industry, 



United States Department of Agriculture) 1.50 



5702. FLASK, Moisture, Copper, single wall, for use in Brown-Duvel Moisture Tester. Capacity, 



1000 cc 3.00 



5704. FLASK, Moisture, Copper, double wall, for use in Brown-Duvel Moisture Tester, for determining 

 moisture in flour and ground samples. Capacity of the inner vessel, 900 cc. (See Bulletin No. 



56 of the Bureau of Plant Industry, United States Department of Agriculture) 6.00 



5708. FLASKS, Phosphorus, Erlenmeyer form with narrow neck, Resistance Grade. Used extensively 

 in iron analysis for determination of phosphorus. Capacity, 400 cc; to take rubber stopper 



No. 4. Number in original case, 96 Each. .25 



Per dozen in original cas? 2.70 



