162 



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



No. 3164. 



No. 3162. 



c.s.co. 



No. 3160. No. 3166. 



3154. COMBUSTION BOATS, Johnson's, of vitrified clay, without handle. Thickness of wall, y ic inch. 



No A B C D 



Length, inches 4 4 4% 5% 



Width, inches % % % % 



Depth, inches % Vw % Vie 



Each $0.13 .17 .16 .21 



3156. COMBUSTION BOATS, Opaque Fused Silica, glazed on both sides, without handle. 



No A B C 



Length, inside, mm 44 76 



Width inside, mm 13 13 



Depth inside, mm 8 8 10 



Each ! 63 .94 1.13 



3158. COMBUSTION BOATS, Iran parent Quartz, 8 mm wide by 5 mm deep. With ring handle. 



No A B C 



Length, mm 50 65 75 



Each 3.60 4.80 6.00 



3160. COMBUSTION BOAT LINING, of B E Alundum, a very pure crystalline alumina treated to 

 remove carbonaceous matter and surface alkali; used as a lining for boats of platinum, porce- 

 lain, clay and alundum to afford protection from fluxing during combustion. Supplied in glass 

 stoppered bottles in Nos. 60, 90 and 120 mesh. 

 Please specify mesh in ordering. 



Size bottle, pounds % 1 2 



Each 50 .85 1.50 



3162. COMBUSTION BOAT SHIELDS, of Alundum, to protect combustion tubes from the spattering 

 . of overheated metals. 



No A B 



Length, inches 4% 5M> 



Bore, inches Hie J 9i6 



Diameter outside, inches % % 



Each 75 1.00 



3164. COMBUSTION CAPSULES, of Alundum, for ashing coal, flour, etc. Will withstand high tem- 

 perature and can be used repeatedly. Made in mixture BA 84. 



No A B C D 



' Diameter, inches l%g 1%G 1% 1% 



Height, inches %e % % % 



Capacity, ce 10 18 25 



Each 25 .30 .40 .35 



3166. COMBUSTION CAPSULES, of Best American Porcelain, without lip, as recommended for the de- 

 termination of ash in coal or coke by the Joint Committee of the American Chemical Society 

 and the American. Society for Testing Materials. (See Journal of Industrial and Engineering 

 Chemistry, January 1917). 



No A B 



Diameter, inches 1% 2 



Depth, inches % l^ie 



Each 20 .20 



3170. COMBUSTION CAPSULES, of Opaque Fused Silica, for ash determinations and ignitions. Depth, 

 % inch. 



No A B C D 



Diameter, inches 1% 1% 2 2% 



Capacity, cc 10 15 20 35 



Each 75 .76 1.13 1.25 



For other CAPSULES, see No. 2408. 



