TY - JOUR T1 - Extracts of Some Letters from Mr. John Sturdie of Lancashire concerning Iron Ore; and more Particularly of the Haematites, Wrought into Iron at Milthrop-Forge in That County. Communicated by Dr. Martin Lister, S. R. S. JF - Philosophical Transactions (1683-1775) VL - 17 SP - 695 EP - 699 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1693.0025 M3 - doi:10.1098/rstl.1693.0025 AU - John, S. AU - Lister, M. ER -