1. Albright, F., and Ellsworth, R. (1929). J. clin. Invest., 7, 183.
2. Albright, F., and Ellsworth, R. (1941). J. Amer. Med. Ass., 117, 527.
3. Ibid., 112, 2592.
4. that her daily requirements ofvitamin D had;Campbell, D.;Lancet,1935
5. from the previous level of 100,000 I. U. daily to 50,000 I. U. daily, and this dose has been maintained subsequently. One further experiment tvas tried in 'January, 1946, when her vitamin' D was discontinued; in two months she reverted to hypocalcaemia and latent tetany