TY - JOUR T1 - Research on the Smallpox of Sheep JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 165 SP - 215 EP - 249 PY - 1875/01/01/ UR - http://dx.doi.org/10.1098/rstl.1875.0006 M3 - doi:10.1098/rstl.1875.0006 AU - Klein, E. ER -