I have recently tad occasion for a special purpose to apply the formula to a case which, I think, presents points of sufficient interest to justify me in laying it before the readers of the Journal of the Institute of Actuaries.

The chief difficulties encountered in the construction of the following Table have arisen, first, from the extreme paucity of the data for adult ages,—the whole number of deaths observed above the age of 14 being 27 only,—and secondly, from the want (hitherto) of a simple and satisfactory method of adapting the law of mortality prevailing in adult life to the observations for infancy and childhood. I proceed to explain the mode in which these difficulties have (as I venture to think) been overcome.