1. Cavalli, L L. 1952. An analysis of linkage in quantitative inheritance. Quantitative Inheritance 135–145. H.M.S.O. London.
2. Darlington, C D. 1932. The control of the chromosomes by the genotype and its bearing on some evolutionary problems. Amer Nat, 96, 25–51.
3. Darlington, C D. 1956. Natural populations and the breakdown of classical genetics. Proc Roy Soc B, 145, 350–364.
4. Mather, K. 1949. Biometrical Genetics. Methuen, London.
5. Östergren, G, and Prakken, R. 1946. Behaviour on the spindle of actively mobile chromosome ends of rye. Hereditas, 33, 473–494.