1. Jones, J. O., Nicholas, D. J. D., and Wallace, T. (1944). Experiments on the control of magnesium deficiency in greenhouse tomatoes. Progress Report I.Rep. agric. hort. Res. Sta. Bristol 1943, 48–53.
2. Jones, J. O., Nicholas, D. J. D., Wallace, T., and Jefferies, A. (1945). Experiments on the control of magnesium deficiency in glasshouse tomatoes. Progress Report II.Rep. agric. hort. Res. Sta. Bristol 1944, 61–71.
3. Nicholas, D. J. D.Jones, J. O., andWallace, T. (1946). Experiments on the control of magnesium deficiency in glasshouse tomatoes. Progress Report III.Rep. agric. hort. Res. Sta. Bristol 1945, 80–94.
4. Nicholas, D. J. D., andStanton, W. R. (1947). Experiments on the control of magnesium deficiency in glasshouse tomatoes. Progress Report IV.Rep. agric. hort. Res. Sta. Bristol 1946, 66–79.
5. Owen, O. (1945). Chemical problems; magnesium deficiency in tomatoes.Rep. exp. Res. Sta. Cheshunt 1944, 61–5.