Title: [Categories] galton.org [By Date] [By Journal] [By Category] Type:Journal:Year:Month:Day:Volume:Number:Pages:PDF FacsimileCategory:ID: [Back] 'The geometric mean, in vital and social statistics.' Proceedings of the Royal Society Paper Author: Galton, Francis [Bib] Statistics 1879 November 20 29 365-7 98 [Uncollected]