Within a period of seventy years, London had been visited by it five separate times; 145,000 having died from its collective attacks. As the visitation had been governed by no known system, as it came without any apparent cause and disappeared quite as capriciously, the Londoners never felt safe from its re-appearance. It seemed always hovering over them; and as the intervals between its departure and return were sometimes only eleven years, and had never exceeded twenty-nine, its harassing impressions were constantly on the minds of the citizens. Its visits did not allow time even to soften or subdue the painful remembrances connected with it; and were it necessary, a reference to the letters, diaries, and chronicles of the day, would show that the name of the plague turned men pale, and predisposed their constitutions for its reception; that the very thought made the merchant regardless of ’Change and of counting-house; and that the tradesman shuddered at the memory of a disease which slew his children, depopulated London, and destroyed his business.

The reports of the approach of the plague were, then, a positive and practical evil; and in 1592, when 30,561 died of the disease, the rumours of its horrors, appalling as these were in reality, were enormously exaggerated. An attempt to quiet public feeling by correctly indicating its progress was, therefore, made in the Bills of Mortality; and though they were not at first maintained consecutively, they were afterwards found so useful as to be continued from 29th December, 1603, to the present time.[4] The mode of their production was simple. When any one died it was indicated either by tolling or ringing a bell, or by bespeaking a grave of the sexton. The sexton informed the searchers, who hereupon “repair to the place where the dead corpse is, and by view of the same and by other inquiries they examine by what disease or casualty the corpse died. Hereupon they make their report to the parish-clerk; and he, every Tuesday night, carries in an account of all the burials and christenings happening that week, to the parish-clerks’ hall. On Wednesday, the general account is made up and printed; and on Thursday, published and disposed of to the several families who will pay 4s. per annum for them.” In 1629, two editions of the weekly bills were printed, one with the casualties and diseases, and the other without. For a long time these papers were made but little use of by the public. A writer of the day says they were examined at the foot, to see whether the burials increased or decreased; they were glanced at for the casualties, as a matter of gossiping interest; and in the plague time, the progress of the pest was closely watched by the courtiers and the nobles, that they might escape its ravages; and by the citizens, with that morbid feeling which is as much attached to extraordinary calamities as to great crimes. But though this might be the case ordinarily, such was not the view with which a citizen of London, by name John Graunt, thought they should be regarded. This man was the author of the first English work on the subject, entitled “Natural and Political Observations on the Bills of Mortality.” Little is known of his antecedents, save that he was the son of one Henry Graunt of Lancaster, that he was born in “Birching Lane,” and that he had the ordinary education granted to the sons of tradesmen. He came early into business, passed through the chief offices of his ward with reputation, and became captain and major of the train-bands, when such an office involved danger as well as honour.

All that has hitherto been said of Graunt might be said of many. But Graunt’s genius was far from being confined within these limits. It shone through all the disadvantages of mean birth and doubtful breeding. It broke down the barriers of rank and the limits of position, and gave him the first thought of a design, which was the earliest movement in economical arithmetic, and the closest approximation to the data on which life assurance is founded.

The exact time is not known when he began to collect and to consider the Bills of Mortality; but he says his thoughts had been turned that way for several years, before he had any design of recording certain notions he had formed. Until he published his volume, a more than Egyptian darkness was on the eyes of the people, and he had to combat some very singular notions. Among others, that London was to be reckoned by millions, that the proportion of women to men was three to one, and that in twenty-six years the population had increased two millions. “Men of great experience in this city talk seldom under millions of people to be in London.” To grapple with these and similar errors was Graunt’s object; and it is easy to comprehend, that his readers rebelled against assertions which lowered the pretensions of their favourite city. It is probable that he made some enemies by his book; as when the fire of London occurred, he was accused of having gone to the reservoir of the New River Company, and of cutting off the supply of water. As, however, he had changed, or was on the point of changing his creed from puritanism to papistry, and the papists had the credit of originating the fire; the accusation was possibly a party one, and is of little importance now. It is with his work on the population we have to deal, and this, which contained “a new and accurate thesis of policy, built on a more certain reasoning than had yet been adopted,” was first published in 1664; meeting with such an extraordinary reception that another edition was called for in the following year, the book being spoken of wherever books then made their way. It formed a taste for these studies among thinking men; and the fact is greatly to the author’s credit, that he made a bold, if fruitless, attempt to deduce the law of life from bills of mortality which did not record the ages as well as the deaths of the people. In addition to the London bills, he gave one for a country parish in Hampshire; and in the later editions he added one for Tiverton, and another for Cranbrook. Charles II. recommended the Royal Society to elect him one of their members, charging the Fellows “that if they found any more such tradesmen, they should admit them all;” and immediately after the appearance of the work, Louis XIV. ordered the most exact register of births and deaths to be kept in France, that was then known in Europe. A few extracts from this rare and curious work will at once indicate its character, and show the simplicity of the existing information; but in their perusal the reader will do well to consider, that Graunt was the first who wrote on the subject; that he had but slight foundations for his calculations; and that with all these difficulties, he was very successful in his conclusions. He says:—

“There seems to be good reason why the magistrate should himself take notice of the number of burials and christenings: viz., to see whether the city increase or decrease in people, whether it increase proportionably with the rest of the nation, whether it be grown big enough. But,” he adds, “why the same should be known to the people, otherwise than to please them as with a curiosity, I see not.

“Nor could I ever yet learn from the many I have asked, and those not of the least sagacity, to what purpose the distinction between males and females is inserted, or at all taken notice of; or why that of marriages was not equally given in. Nor is it obvious to every body why the account of casualties is made. The reason which seems most obvious for this latter is, that the state of health in the city may at all times appear.” In another page he writes that “7 out of every 100 live in England to the age of 70.” “It follows from hence that, if in any other country more than 7 of the 100 live beyond 70, such country is to be esteemed more healthy than this of our city.” It must be remembered, however, that this was very conjectural. “We shall,” he says, when leading to this conclusion, “come to the more absolute standard and correction of both, which is the proportion of the aged; viz. 15,757 to the total 229,250, that is, of about 1 to 15, or 7 per cent.; only the question is, what number of years the searchers call aged, which I conceive must be the same that David calls so, viz. 70. For no man can be said to die properly of age, who is much less.”

Out of the above 229,250 he estimates that 86 were murdered; and, alluding to a peculiar disease which had arisen, intimates that the proportion of males was greater than that of females, in the words, “for since the world believes that marriage cures it, it may seem indeed a shame that any maid should die unmarried, when there are more males than females; that is, an overplus of husbands to all that can be wives.” “In regular times when accounts were well kept, we find not above 3 in 200 died in childbed; from whence we may probably collect that not 1 woman of 100, I may say of 200, dies in her labour, forasmuch as there may be other causes of a woman’s dying within the month.” He then attempted to show the population of London, from which he had been a long time prevented by his religious scruples; but his arithmetical mind was provoked by a “person of high reputation” saying there were “two millions less one year than another.” To ascertain the number he made many very interesting calculations, and came to this conclusion:—“We have, though perhaps too much at random, determined the number of the inhabitants of London to be about 384,000.” He then gave the following table, which is perhaps one of the most remarkable we have, the period and the material being taken into consideration:—

Of 100, there die within the first six years36
The next ten years, or decad24
The second decad15
The third ”9
The fourth ”6
The fifth ”4
The sixth ”3
The seventh ”2
The eighth ”1

From whence it follows that, of the said 100 there remain alive—