00365cam a22001217a 4500008004000000082001600040100001700056245007900073260005000152300001000202700001800212700001300230180718b1952   xxu||||| |||| 00| 0 eng d  aX27x42 Un3s  aLawson, D.I.  aHeating of panels by flue pipescby D.I. Lawson, L.L. Fox and C.T. Webster  aLondonbHer Majesty's Stationery officec1952  a41+p.  aWebster, C.T.  aFox, L.L