Introduction to the book by Stephen Prothero and a long article looking at Olcott's interpretation of Buddhism.
http://aryasangha.org/olcott-prothero.htm
Adyar Pamphlet No. 112. "it is most evident that too much care cannot be taken to ascertain beyond doubt the actual and complete death of a person before committing the body to the grave."
http://www.theosophical.ca/Vampire.htm