Procedure, have had a 'very rough start' mail train able to save 10 pounds per mile, heaviest train had yet is 16 carriages, the lightest 12 'but I am fully persuaded that we area match for any of the Stephenson Patents (which they have a great many from different makers)', hot axle boxes, feels thankful for Hunter’s letter, has just met Jones of Jones & Potts, describes engine.