TY - JOUR T1 - The Oestrous Cycle and the Formation of the Corpus Luteum in the Sheep JF - Philosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character (1896-1934) VL - 196 SP - 47 EP - 97 PY - 1904/01/01/ UR - http://dx.doi.org/10.1098/rstb.1904.0003 M3 - doi:10.1098/rstb.1904.0003 AU - Marshall, F. ER -