TY - JOUR T1 - An Improvement Proposed in the Cross Wires of Telescopes, by Dr. Wilson, of Glasgow. In a Letter to the Astronomer Royal JF - Philosophical Transactions (1683-1775) VL - 64 SP - 105 EP - 107 PY - 1774/01/01/ UR - http://dx.doi.org/10.1098/rstl.1774.0011 M3 - doi:10.1098/rstl.1774.0011 AU - Wilson, A. ER -