Number of areas Population covered Areas possessing sufficient plant to heat treatment provide forthwith for all milk 96 or 19% 13,340,000 or 46 Areas possessing plant which with minor addit- ions could provide heat treatment for all milk 39 or 8% 3,070,000 or 11% Areas inadequately supplied with heat treat- Areas devoid of heat treatment plant 233 or 46% 5,060,000 or 17% Uncertain 3 or 1% 100,000 or 1% 504 28,770,000 Figures for Scotland are not yet available. 7. It will be seen that within a very short time the proposed scheme requiring the heat treatment of all milk (except T.