t., as indi-cated by the proportion of ferrite (white) andpearlite (black). Next in order of fineness of grain comes the C, Band A tires respectively. Here again the relativeamounts of ferrite and pearlite give an approximateindication of the amount of contained carbon, fromwhich it would appear… … . Bf.low Tkeao. > MICR.OPHOTOGR.APHS OF TIRE U. I In. Below Tread.88 DIAMETERS.
Railroad cars
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
