An Estimate of the True Value of Vaccination as a Security Against Small Poxbookgutenberg.orgSummary sourcesgutenbergName contains your searchCATALOG · metadata onlySource recordrank this linkDetailsOriginal source
A Statement of Facts Tending to Establish an Estimate of the True Value and Present State of Vaccinationbookgutenberg.orgSummary sourcesgutenbergName contains your searchCATALOG · metadata onlySource recordrank this linkDetailsOriginal source