TY - JOUR T1 - An Account of the Observations on the Great Nebula in Orion, Made at Birr Castle, with the 3-Feet and 6-Feet Telescopes, between 1848 and 1867. With a Drawing of the Nebula JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 158 SP - 57 EP - 73 PY - 1868/01/01/ UR - http://dx.doi.org/10.1098/rstl.1868.0004 M3 - doi:10.1098/rstl.1868.0004 AU - Oxmantown, L. ER -