TY - JOUR T1 - A Letter from Mr. John Reinhold Forster, F. R. S. to William Watson, M. D. Giving Some Account of the Roots Used by the Indians, in the Neighbourhood of Hudson's-Bay, to Dye Porcupine Quills JF - Philosophical Transactions (1683-1775) VL - 62 SP - 54 EP - 59 PY - 1772/01/01/ UR - http://dx.doi.org/10.1098/rstl.1772.0008 M3 - doi:10.1098/rstl.1772.0008 AU - Forster, J. ER -