A brief rule to guide the common-people of New-England how to order themselves and theirs in the small pocks, or measels.

The first medical publication of North America and the only one to appear in the 17th century. Only one copy of the original printing of this broadside survived, written by Thacher, a Boston minister.  The sheet was reprinted, with a bibliographical and biographical study of the reprints done in 1702 and 1721-22, by Henry R. Viets. (Baltimore: The Johns Hopkins Press, 1937).