Finding Katahdin Document Packets, Chapter 5, Section 2
Chapter 5, page 140.
This 1801 letter from Benhamin Vaughan to Dr. Page recommends bloodletting, or phlebotomy, to cure a patient's aliment.
Bloodletting was a common healing technique. Doctors would cut patients in several spots and allow their blood to drain, with the idea that the sickness would leave their body through the blood.