CENTRAL SCIENTIFIC CO., CHICAGO, ~C. S. A. 



25 



Nos. 394, 5 and 6 assembled. 



No. 404. 



394. RETORT, Tubulated, for the distillation of creosote oil, according to the specifications of the 



American Society for Testing Materials. Capacity, about 250 cc; length of condenser tube, 

 about 36 cm. (See Standard Method No. D38 17 for Sampling and Analysis of Creosote 



Oil) $0.90 



THERMOMETER for No. 394, see No. 350. 



395. CONDENSER, Glass, for use with No. 394. Length, about 25 cm .75 



396. SHIELD, Galvanized Iron Covered with Asbestos, for use with No. 394, for protection from air 



currents and for preventing radiation 1.50 



397. SLIDE BOX, Barrett Type, of copper with six corrugations for slide test of pitch 6.00 



398. SPECIFIC GRAVITY PAN, American Society for Testing Materials Type, of nickel, for deter- 



mining the specific gravity of solid and semi-solid fractions of creosote oil. Diameter of top, 



2.5 cm; depth, 1.2 cm. With hook for attaching to balance 1.00 



VISCOSIMETER, Engler's, ?ee Oil Testing Apparatus. 



400. VISCOSIMETER, New York Testing Laboratory Type, for the viscosity of bituminous binders 



at 90F. Consists of a concave aluminum float 6 inches in diameter, and a brass collar which 

 screws into the base of the float. Complete with three standardized brass collars. (See Engi- 

 neers' Record for May 1, 1909) 8.50 



401. PLATE, Brass, 5x8 cm, for use in filling the brass collar of No. 400 40 



402. VISCOSITY APPARATUS (Penetrometer) , Schutte Type, for Tarvia X and soft pitch, as used 



by the Barrett Manufacturing Company. Consists of a tube of brass 2 x 10% inches, with 

 wire handle for suspending. A hollow plug of brass, 1 inch long with % inch bore, screws 

 into opening in lower end. Complete with circular disk of tin plate for retaining pitch while 

 plug is being filled 6.00 



403. PLUG only of No. 402, of brass 1.60 



For THERMOMETERS, HYDROMETERS, DRYING OVENS, WATER BATHS, DISTILLING 



FLASKS, etc., see proper general headings. 

 ATOM MODELS, see Models. 



404. AUGER BITS, set of 13 high grade bits in hardwood case; % to 1 inch by sixteenths of an inch. 



.' 6.30 



405. AUGER BITS, good quality. 



Size, 16ths of an inch.. 3 4 5 6 7 8 9 10 11 12 13 14 15 16 

 Each 58 .48 .48 .48 .48 .48 .58 .58 .68 .68 .78 .78 .90 .90 



406. AUGER BIT, Clark's adjustable expansion bit, cutting from ^ inch to 1% inches 1.00 



