The younger brother of the statistician and demographer Jacques Bertillon, Alphonse Bertillon in 1882 introduced his system of identification, which incorporates a series of refined bodily measurements, physical description, and photographs. The Bertillon system was superseded by fingerprinting as the primary method of identification, though it remains an excellent means of furnishing a minutely descriptive portrait, valuable to investigators. Bertillon wrote extensively on his method, one work being La Photographie judiciaire (1890). A biography by H.T.F. Rhodes, Alphonse Bertillon: Father of Scientific Detection, was published in 1954.