[RAILWAYS] TREDGOLD, Thomas. A Practical Treatise on Rail-Roads and Carriages, London: Printed for Josiah Taylor, 1825, 8°, FIRST EDITION, 3 (of 4) engraved folding plates only, contemporary half calf (worn, spine darkened, lacks frontispiece) -- GUYONNEAU DE PAMBOUR, F.M.G. A Practical Treatise on Locomotive Engines upon Railways, London: John Weale, 1836, 8°, 4 engraved folding plates, 19th century half calf (joints and corners worn, lacking half title?). (2)