Letter from R H Landaburu to Mr Clive Collins, Armour. Attached to the letter is a protocol, a letter to Dr Prince, Dr Prince s report, a memo by M E Hrinda and an analytical test report. Overall the document provides a summary account of an experiment testing Armour s heating conditions for Factor VIII in elimination of HTLV III. Includes details of the study, method of study and some discussions relating to the study.