首页 / 官方藏书 / The Present Method of Inoculating for the Small-Pox / To which are added, some experiments, instituted with a view to discover the effects of a similar treatment in the natural small-pox / THE FULL PROJECT GUTENBERG™ LICENSE
首页 / 官方藏书 / The Present Method of Inoculating for the Small-Pox / To which are added, some experiments, instituted with a view to discover the effects of a similar treatment in the natural small-pox / THE FULL PROJECT GUTENBERG™ LICENSE