“A Treatise upon the Small-Pox,” by Sir Richard Blackmore. Retrieved from the Internet Archive at: <a rel="nofollow" class="external free" href="https://archive.org/details/b30547556">https://archive.org/details/b30547556</a>.
Sir Richard Blackmore
1723
“A Treatise upon the Small-Pox,” by Sir Richard Blackmore.