An apology is scarcely required for explaining an easy method of constructing select mortality tables; and it is hoped that the method now described and illustrated will prove useful to others, and that they also will find that it gives results sufficiently accurate for all ordinary purposes.

Hitherto, select mortality tables have been constructed only by very elaborate processes; and the amount of labour involved is practically prohibitive in such cases as occur now and then in actuarial practice. Possibly many actuaries do not often require special tables of the kind, but occasions do arise where it is of real importance to construct them. This happened to me in respect of the experience of the female annuitants of the Royal National Pension Fund for Nurses, and hence the method which I now suggest was devised.