“It were good to know how much hay an acre of every sort of meadow will bear; how many cattle the same weight of each sort of hay will feed and fatten; what quantity of grain and other commodities the same acre will bear in 3 or 7 years; unto what use each sort is most proper; all which particulars I call the intrinsic value, for there is another value merely accidental or extrinsic, consisting of the causes why a parcel of land lying near a good market may be worth double another parcel, though but of the same intrinsic goodness; which answers the question why lands in the north of England are worth but 16 years purchase and those of the west above 28.” “Moreover, if all these things were clearly and truly known, it would appear how small a part of the people work upon necessary labours and callings; how many women and children do just nothing, only learning to spend what others get; how many are mere voluptuaries, and as it were, mere gamesters by trade; how many live by puzzling poor people with unintelligible notions in divinity and philosophy; how many, by persuading credulous, delicate, and religious persons that their bodies or estates are out of tune and in danger; how many, by fighting as soldiers; how many, by ministries of vice and sin; how many, by trades of mere pleasure or ornament; and how many, in a way of lazy attendance on others; and, on the other side, how few are employed in raising necessary food and covering; and of the speculative men how few do study nature, the more ingenious not advancing much further than to write and speak wittily about these matters.” From this enumeration of his objects it may be seen that life assurance was not contemplated by the author when his important book was written; but as the earliest attempt to number the people, to classify their callings, and to ascertain the mortality among them, he assuredly laid the foundations of this science. His book gave new ideas. It first propounded the fact, that “the more sickly the years are, the less fruitful of children they be;” and though this was wonderfully ridiculed, time has proved that it was not less strange than true. It formed a taste for similar inquiries among thinking men. It was published at a period when, the city being less populous, there was additional facility in arriving at certain facts. From that time the subject was cultivated more and more. Increased attention was paid to the parish registers. The different diseases and casualties were gradually inserted; but it was not till 1728 that the ages of the dead were introduced. Graunt had forced people to think; and whatever merit may be ascribed to Sir William Petty, Daniel King, Dr. Davenant, and others, it may all be traced to the first observations of Graunt on the Bills of Mortality. To him we owe the care with which parish registers have since been kept, and the valuable material they have afforded to the science of political economy.