In the 12th annual report of William Farr, Esq., to the Registrar General of England, we are told “it may be broadly stated that 27 in 1000 men of the population of the age of 20 and under 60, are suffering from one kind of disease or another; that several are of long duration, that others are recurrent, and that some are hereditary.” We are informed in a subsequent report of the Registrar himself, that it seems to be a “law” one person out of every 45, living at the commencement of any year, will die within that year. (The entire system of insurance--life, fire, and marine--is erected on the principle contended for in this chapter. Not only do a certain relative number of men die in each class annually, but the law extends to the number of policies lapsed each year. There seems also to be a periodicity in the number of fires and marine disasters.) According to Porter and Buckle, even “marriage is not determined by the temper and wishes of the individual, but by large general facts over which individuals can exercise no authority. It is now known that marriages bear a fixed and definite relation to the price of corn.” A century’s experience in England demonstrates that marriages are regulated by the average earnings of the great mass of people. Cheapness of provision and not love regulates the number of nuptials. Combe affirms the same striking coincidence in the ratio of births in Great Britain. Another singular fact has been deduced from the official reports of England and France. “Even forgetfulness is under a constant law.” Buckle is an authority for the statement that “year after year, the same proportion of letter-writers forget to direct their letters, in some part; so that for each successive period we can actually foretell the number of persons whose memory will fail them in regard to this trifling occurrence.”