An essay to ascertain the value of leases and annuities for years and lives, and to estimate the chances of the duration of lives. Wherein are many observations on bills of mortality, etc / [Anon].

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An essay to ascertain the value of leases and annuities for years and lives, and to estimate the chances of the duration of lives. Wherein are many observations on bills of mortality, etc / [Anon]. Public Domain Mark. Source: Wellcome Collection.