No CrossRef data available.
Published online by Cambridge University Press: 18 August 2016
The Joint Committee on Mortality Investigation asked Dr. Sprague some time ago to graduate the Annuity Experience by the Graphic Method with the view of determining the period during which selection lasts; but as he was too fully occupied to allow of his personally undertaking the proposed graduation, the work was undertaken by the writer on principles arranged in consultation with Dr. Sprague.