FINCH, Caleb Ellicott
George A Sacher, Life table modification and life prolongation. IN: Handbook of the biology of aging, edited by Caleb E. Finch and Leonard Hayflick, pp. 582–638.New York: Van Nostrand Reinhold, 1970.
"The building of a connection between the Gompertz equation and the biology of ageing owes much to the work of biophysicist George Sacher  of the Argonne National Laboratory, whose introduction to ageing stemmed from the growing recognition during the 1950s that irradiation would shorten length of life . The same recognition led physicist Leo Szilard  to propose the somatic mutation theory of ageing and prompted a range of studies on the effects of radiation on ageing both in animal models such as Drosophila (e.g. ) and also in human survivors of atomic bomb irradiation .
Sacher  used the Gompertz model to compare the patterns of increase in age-specific mortality rates across different species. By plotting age-specific mortality on a logarithmic scale against age (figure 1), he showed that a linear increase was generally observed, in accordance with the logarithmic version of equation (1.1), i.e.
"Thomas B. L. Kirkwood, Decipherng death: a commentary on Gompertz (1825) 'On the nature of the function express of the law of human mortality and on a new mode of determining the value of life contingencies"). (http://rstb.royalsocietypublishing.org/content/370/1666/20140379, accessed 01-2017
Subjects: COMPUTING/MATHEMATICS in Medicine & Biology, DEMOGRAPHY / Population: Medical Statistics, GERIATRICS / Gerontology / Aging