The Longevity Function: Some Additional Data from Domestic Animals

IN 1825, Benjamin Gompertz 1 analysed the function expressing the law of human mortality and suggested that the rate of mortality increased in a logarithmic manner with the age of the population. Recently, Kershaw, Chalmers and Lavoipierre 2 , analysing the pattern of mosquito survival in laboratory conditions, showed that, for a cohort of 1,200, the Gompertz function was linear for both male and female.