246 



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



No. 5602. 



No. 5606. 



No. 5608. 



No. 5610. 



No. 5618. 



No. 5622. 



No. 5624. 



No. 5632. 



5600. FLASK, Acetylizatiou, with ground in condensing tube, for assaying menthol in oil of pepper- 

 mint. Capacity, about 150 cc; length of condensing tube, 100 cm. (See United States Phar- 

 macopoeia for 1916, page 296) $1.50 



5602. FLASKS, Assay Beaker Flasks, Resistance Grade, high form, with lip. 



Capacity, cc 125 250 500 1000 



Number in original case 180 132 72 36 



Each 13 .17 .25 .42 



Per dozen in original case 1.40 1.84 2.70 4.54 



5606. FLASK, Cassia, with ground glass stopper, for assaying cinnamic aldehyde. Total capacity, about 

 200 cc; neck graduated to 10 cc in i/ 10 cc divisions. (See United States Pharmacopoeia for 1916, 



page 289) 2.25 



5608. FLASKS, Copper, heavy, polished, with ring neck. Capacity, ce. . 250 500 1000 2000 



Each 2.30 2.90 3.70 5.00 



5610. FLASKS, Copper Oxide, with ground glass stopper, and glass cap ground on; for keeping copper 

 oxide pure for use in analysis. 



Capacity, cc 125 250 500 



Each 1.50 1.80 2.40 



5618. FLASKS, Distilling, Pyrex Glass, with side tube in middle of neck. 



Capacity, cc 50 125 250 500 1000 1500 2000 3000 



Each 54 .60 .80 .96 1.30 1.85 2.10 2.60 



Note: If specified when ordering, side tube may be located where desired. 



5620. FLASKS, Distilling, Opaque Fused Silica, regular form with side arm in center of neck. Liquid 

 levels are readily visible. 



Capacity, cc 50 100 250 500 



Each . . '. 4.05 5.95 9.40 11.25 



5622. FLASKS, Distilling, Claissen's. 



Capacity, cc 10 60 125 250 500 



Each 40 .60 .70 .80 1.20 



5624. FLASKS, Distilling, Engler's, Pyrex Glass, for fractional distillation of creosote and petroleum 

 oils. Made to standard dimensions, according to the American Society for Testing Materials 

 and the U. S. Bureau of Mines. 



Capacity, cc 100 200 250 



Each . . " 55 .65 .80 



5632. FLASKS, Distilling, Hempel's, Pyrex Glass, for the distillation of creosote. (See Circular 112, 

 Forest Service of United States Department of Agriculture.) Capacity, 500 cc 1.20 



