Cen- divided into millimeter squares, and upon which tral Railroad, said, at the recent meeting of the are marked two axes atright angles, and so ar- ranged that the horizontal axis of the mirror and Car and Locomotive Painters’ Association, that in preparing iron for tanks it should be rolled and… … iron. Mr. F. W. Wright said possible to perform the fol- that the rust could be re- lowing operations: Measure horizontal angles and lay off distances; measure ver- tical angles and differences of level; vertical] and hori- zontal stadimetry ; picturesque sketching ; and redue- the tank would be…
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