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



301 



7347. 



7360. 

 7362. 

 7364. 



5698. 

 5708. 



5704. 

 7368. 

 3662. 

 3664. 



7371. 



7372. 



No. 7347. 



No. 7362 (including No. 7374). 



GRAIN TESTEE TILLERS, for use with No. 7346 Grain Testers. This device is of special 

 value when accurate testing is desired, since it allows the grain to flow in a uniform stream 

 and insures a uniform density in the cup. Complete with polished steel rod for striking off. 



Capacity, quarts . . 1 2 



Each $8.00 10.00 



Note: The above fillers may be used with any grain testers of capacity equal to or smaller than 



that of the filler. 



MAGNIFIERS, for Grain, see general heading Magnifiers. 



MOISTURE TESTERS, Official Brown-Duvel, developed primarily to meet the needs of grain 

 dealers for a rapid and exact method of determining the moisture in corn. Methods have now 

 been worked out for making moisture tests of the more important cereal grains and some of 

 the more important seeds, as well as for flour and ground grain. The method is entirely prac- 

 ticable for making moisture determinations of practically all substances which admit of a free 

 circulation of oil during the heating. The apparatus consists of a heating chamber divided 

 into compartments for testing a number of samples at the same time; a cold water tank 

 through which condenser tubes pass; burners; thermometers; special side neck flasks; gradu- 

 ated cylinders; and No. 7374 Automatic Oil Measuring and Grain Separating Device. Testers 

 B, C and D are 12% inches -wide and 31 inches high. No. A is especially adapted for field 

 work and is put up in a carrying case 11 by 7 by 15 inches; weight complete, 19 pounds. 

 These testers are the standard form as specified in Paragraph 11 of the Federal Corn Grades, 

 effective July 1, 1914. (See Bulletins Nos. 56 and 99, and Circular No. 72, Bureau of Plant 

 Industry, United States Department of Agriculture.) 



No. . A B C D 



Number of compartments 1 2 4 6 



Length, inches 6% 13 26 39 



With gas burners 27.00 40.00 55.00 70.00 



With alcohol burners 27.00 40.00 55.00 70.00 



With electric heaters 35.00 56.00 87.00 118.00 



Note: In ordering No. 7364, kindly state voltage of circuit. 



Parts and Accessories for Moisture Testers. 



FLASK, Pyrex Glass, 1000 cc 1-50 



FLASK, Copper, single wall, 1000 cc 3.00 



FLASK. Copper, double wall, inner vessel 900 cc 6.00 



CONDENSER TUBE, of glass 30 



GRADUATED CYLINDERS, 25 cc, graduated in % cc 65 



GRADUATED CYLINDER, new design; for use when 50 gram samples are being tested. With 

 this graduate the percentage of water up to 16 per cent., is given by direct reading without 



the necessity of multiplying by two, as with the original graduate 85 



OIL for moisture testers, 'according to the specifications of the Bureau of Plant Industry, in 

 metal cans. 



No A 



Capacitv, gallons 1 



Each .'.. 90 3.25 



RUBBER STOPPERS, especially designed to stand the high temperature existing in moisture 

 test flasks: are absolutely necessary when copper flasks are used. 



No 6 



Per dozen.. 1-65 



