Fisher, Ronald Aylmer, Sir, 1890-19622006-11-162006-11-161922Annals of Applied Biology, 9: 142-145 (1922)http://hdl.handle.net/2440/15177Reproduced with permission of Annals of Applied Biology.344985 bytesapplication/pdfen023: Statistical Appendix to a Paper by J. Davidson on Biological Studies of Aphis rumicis.Journal article