Paper entitled Supplies of Human AntiHaemophilic Globulin circulated to the Members of the Working Party on Human AntiHaemophilic Globulin. Estimates the volume of HAHG needed annually for the care of the Haemophiliac population in the UK and the possible ways to supply HAHG for the proposed Treatment Centres. Also discusses the method of collecting blood for plasma fractionation and a summary of Fractionation Laboratoriescentral preparation.