viii ADVERTISEMENTS. 



INTERNATIONAL 

 HORTICULTURAL EXHIBITION. 



NOTICE. 



THE GREAT ORCHID TENT, 500 FEET LONG AND 40 FEET WIDE, WAS 

 HEATED BY ONE OF 



ORMSON'S 



NEW PATENT WROUGHT IRON 



MULTITUBULAR BOILERS 



WITH GREAT SUCCESS, AND A REMARKABLY SMALL QUANTITY OF 



FUEL. 



A NEW SYSTEM 



OF REGULATING COMBUSTION, BY AIR VALYES CONNECTED WITH 

 THE FURNACE BARS, 



Which will give the Attendant absolute command over the Fire, and enable him 

 to keep it burning at any rate of combustion he pleases from 10 to 

 24 hours or more without attention. 



HENRY ORMSON, F.S.A. 



lortiortteral Jtrrtiitert, guilder, and got-wato &$$mtm 



MANUFACTURER, 



STANLEY BRIDGE, KING'S ROAD, CHELSEA, LONDON, S.W. 



