166 



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



3246. 



3248. 



3250. 



3252. 

 3253. 

 3256. 



Nos. 3246-56. 



CORES, XXXX Quality, regular length, far superior for laboratory work to the XX or XXX 



quality in soundness and freedom from holes. 



No 1 2 3 4 5 6 7 8 9 10 



DAam. at small end, inches. . % 2 



Per dozen , 08 



Per gross 45 



No 



Diam. at small end, inches. . 1 



Per dozen 35 



Per gross 



CORES, XX Quality, Nos. to 11 assorted, in gross packages only Per gross .75 



CORES, XX Quality, Nos. 12 to 26 assorted, in gross packages only Per gross 3.00 



CORES, Selected Grade, regular length, finest quality, for use in chemical laboratories. An es- 

 pecially light cork, practically free from holes, specially recommended for use in laboratories 

 where distillations and extractions are made with volatile liquids. 



No 13 14 15 .16 17 18 19 20 



Diam. at small end, inches i% 6 1 ~^ViK 1%2 !%:> 1%2 !%> 1H&2 



Per hundred 2.65 3.00 3.50 4.25 5.00 5.50 6.00 8.00 



Per bag of 500 12.00 13.50 15.75 19.25 22.50 25.00 27.00 36.00 



