TY - JOUR T1 - An Extract of Two Letters from Mr. Sampson Birch, an Alderman and Apothecary at Stafford, concerning an Extraordinary Birth in Staffordshire, with Reflections Thereon by Edw. Tyson M. D. Fellow of the Coll.of Physitians, and of the R. Society JF - Philosophical Transactions (1683-1775) VL - 13 SP - 281 EP - 284 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1683.0039 M3 - doi:10.1098/rstl.1683.0039 AU - Birch, S. AU - Tyson, E. ER -