§ 71. Mr. Willisasked the Secretary of State for Scotland what is the basis upon which the figure for the net annual immigration for Scotland is calculated.
§ Mr. MaclayEstimates of migration to and from other parts of the United Kingdom are based upon the number of medical cards transferred between executive councils when migrants change their doctor. Estimates of migration to and from overseas are based upon returns from shipping companies, with an arbitrary addition to cover air travel.