ADVERTISEMENTS. 
xv 
GEORGE HENDRY & C% 
OAK LANE, LIMEHOUSE, 
VACUUM 
PANS 
ON OUR NEW 
AND 
IMPROVED 
PRINCIPLES. 
VACUUM 
PUMPS 
WITH ENGINES 
COMBINED. 
AIR PUMPS. 
CONDENSERS. 
DEFECATORS. 
COPPER 
TAYCHES. 
COPPER 
STILLS, 
STEAM AND 
FIRE. 
RETORTS. 
COFFEY'S 
PATENT 
CONTINUOUS 
WORKING 
STILLS. 
WETZEL 
EVAPORATING 
PANS. 
EVERY 
DESCRIPTION 
OF CHEMICAL 
APPARATUS 
MADE ON THE 
MOST 
IMPROVED 
PRINCIPLE. 
VARNISH 
PLANT, &c. 
M PANS 
Stock, 
READY FOR 
(THIS engraving is copyright.) 
MAWUFACTtJREKS 
EYERY DESCRIPTION of MACHINERY & COPPER WORK 
FOR SUGAR PLANTATIONS, 
Rum Stills, Vacuum Pans, and Triple - Effect 
\jp. Apparatus, &c,, &c. 
