TY - JOUR T1 - On the Mechanical Conditions of a Swarm of Meteorites, and on Theories of Cosmogony JF - Philosophical Transactions of the Royal Society of London. A (1887-1895) VL - 180 SP - 1 EP - 69 PY - 1889/01/01/ UR - http://dx.doi.org/10.1098/rsta.1889.0001 M3 - doi:10.1098/rsta.1889.0001 AU - Darwin, G. ER -