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



171 



No. 3381. 



No. 3386. 

 No. 3390. 



No. 3394. 



No. 3388. 



3376. CRUCIBLES, Denver Fire Clay, high form, for gasoline or open furnace work; without covers. 



No D E F G J K L 



Height, inches 4 4% 5 5% 6% 7% 8 



Diam. at top, inches 2% 3 3% 3% 4% 4% 5>4 



Approx. number in original barrel 450 300 250 175 75 50 40 



Per dozen $0.90 1.35 1.50 2.05 3.90 4.75 8.45 



Per 100 in original barrel 5.25 7.95 8.90 12.30 23.40 28.45 50.50 



COVERS for No. 3376. 



Per dozen 40 .55 .60 .65 .90 1.40 1.60 



Per hundred in original barrel 2.75 3.90 4.00 5.25 6.50 10.50 12.00 



3377. 



3380. 



3381. 



3384. 



3386. 



3388. 



3390. 



3392. 

 3394. 



CRUCIBLES, Denver Fire Clay, tall narrow or French form; for gas or gasoline furnaces; 'with- 

 out covers. 



No 



Height, inches 



Diam. at top, inches 



Approx. number in original barrel. 



Per dozen 



Per 100 in original barrel 



COVERS for No. 3380. 



Per dozen 



Per 100 in original barrel. 



6 



4 



2% 

 450 



.90 

 5.25 



.45 

 3.00 



8 

 5 



300 

 1.65 

 9.75 



.45 

 3.00 



9 

 5% 



3 



250 



2.10 



12.60 



.75 

 6.00 



CRUCIBLE, Clay Filtering, C. M. Johnson's, very strong, resisting pressure. Will produce clear 

 filtrates and withstand the full heat of a Meker burner. Especially adapted for use in de- 

 termining vanadium and chromium. Diameter, 1% inches; capacity, 25 ce 1.25 



CRUCIBLES, Copper, spun and polished, with covers. 



No :...' A B C D E 



Capacity, cc 20 30 50 100 250 



Diameter, inches 1% 1% 1% 2% 3% 



Height, inches 1% 1% 2 2% 3% 



Each ...' 65 .75 .85 1.10 2.20 



CRUCIBLES, Wrought Iron, light, with covers. 



Capacity, cc , 



Diameter, inches ." 



Height, inches 



Each 



20 



CRUCIBLES, Nickel, spun from pure sheet nickel, with covers. 



No A B 



Capacity, cc 20 30 



Diameter, inches l 1 ^ 1% 



Height, inches 1% 1% 



Each 1.20 1.35 



.20 



50 

 2% 



.22 



100 



2% 



2 



.36 



C 

 50 

 1% 



2 

 1.45 



D 



100 

 2% 

 2% 

 2.40 



200 

 3% 

 2% 

 .40 



E 



250 

 3% 



5.00 



CRUCIBLE, Nickel, Kawin's, of heavy pure nickel, for use in muffle furnaces for burning off filter 

 paper in silica determinations in iron. Diameter, 28 mm; height, 15 mm 45 



CRUCIBLE, Nickel, Pennock and Martin's, for the rapid and accurate determination of sulphur 

 in coal and coke; consists of a pure nickel crucible of 40 ce capacity, with perforated lid for 

 insertion of ignition wire, mounted upon an aluminum base. Diameter of crucible, 1% inches; 

 height, 1% inches. (See Journal of the American Chemical Society, for December 1903, page 

 1265) 2.65 



