Over the years Dr. Pitcairn has given a number of presentations at homeopathic conferences. They are mostly of interest to students or practitioners of homeopathy. Here are links to some of them which are off site.
An Interview With Dr. Pitcairn
On The Meaning Of Being A Homeopath
The Character Of Samuel Hahnemann, MD
Understanding Mental & Emotional Symptoms
C. M. Boger, Master Of Simplicity
Towards A Veterinary Repertory
Animal Behavior & Veterinary Homeopathy