TY - JOUR T1 - Observations upon the Comet That Appeared in the Months of September and October 1757, Made at the Royal Observatory by Ja. Bradley, D. D. Astronomer Royal, F. R. S. and Member of the Royal Academy of Sciences at Paris JF - Philosophical Transactions (1683-1775) VL - 50 SP - 408 EP - 415 PY - 1757/01/01/ UR - http://dx.doi.org/10.1098/rstl.1757.0053 M3 - doi:10.1098/rstl.1757.0053 AU - Bradley, J. ER -