ADVERTISEMENTS. xvii 



TUBES 



FOR 



HIGH-PRESSURE 



GAS 

 MAINS, 



WITH 



SCREWED JOINTS, 



RIGID LEAD JOINTS, 



ETC., ETC. 



AND 



STEWARTS 



LLOYDS, 



LIMITED. 



41, Oswald St., Nile St., 



GLASGOW. BIRMINGHAM. 



