(1) Acromegaly (Benoit, Theil, and Watten, 1963). (2) Paget's disease of bone (Benoit and others, 1963). (3) Hyperthyroidism (Sjoerdsma, Udenfriend, Keiser, and LeRoy, 1965). (4) Marfan's syndrome (Sjoerdsma, Davidson, Udenfriend, and Mitoma, 1958). (5) Hyperparathyroidism (Benoit and others, 1963; Laitinen, Nikkikii, and Kivirikko, 1966). (6) Primary and metastatic bone tumours (Hosley, Taft, ...