200 



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



4174. No. 4176. 



NO. 4178. No. 4180. No. 4182. No. 4184. No. 4186. No. 4188. 



4180. 



4182. 

 4184. 



4186. 

 4188. 



DISTILLING TUBE, Glinky's, with glass valves. Length over all, 15 inches $2.40 



DISTILLING TUBE, Hempel's, filled with glass beads. Length over all, 16 inches 3.50 



DISTILLING TUBE, Knight, for use in the separation of xylenols and higher homologues from 

 phenol and the cresols. The dimensions are so proportioned as to provide a layer of liquid 

 in the bottom bulb which serves as a condensing medium for the xylenols and higher homo- 

 logues, while allowing the phenol and cresols to pass through. (See Journal of Industrial 

 and Engineering Chemistry, Vol. X, No. 1, for January 1918, page 16) 2.25 



DISTILLING TUBES, LeBel-Henninger's. 



No 



Number of bulbs 



Each 



A 



2 



1.50 



B 



3 

 2.00 



c 



4 

 2.50 



D 



5 

 3.00 



DISTILLING TUBES, Wurtz's, with two bulbs. Length over all, 12 inches 90 



DISTILLING TUBES, Young's Form, for the distillation of small quantities. With rod and 15 

 disks. Length over all, 18 inches 3.00 



DISTILLING TUBE, similar to No. 4184, but with 20 disks and 21 constrictions. Length over 

 all, 18 inches 4.50 



DISTILLING TUBES, with pear-shaped bulbs. 



No A B 



Number of bulbs 4 12 



Length over all, inches 10 20 



Each 3.00 4.50 



NO. 4192. 



No. 4194. 



No. 4196. 



4192. DIVIDER, Plain, of brass. Length, 4% inches 60 



4194. DIVIDER, Spring. The popular Yankee polished steel spriflg divider, 5 inches long 50 



4196. DIVIDER, Wing, of polished steel, sharp points, 6 inches long, with set screw 40 



