In 1779, he made a further attempt to contribute to the information of the public in an “Essay on the Population of England;” but the data on which he founded his opinion, was scarcely certain enough to render his conclusions of much value to the statistician. In the fourth edition of his work on annuities, he gave several valuable tables on single and joint lives, at various rates of interest, not only from the probabilities of life at Northampton, but also from the same probabilities at Sweden. His after career is well known. He was employed to form a plan by which the poor might support themselves in sickness and in old age; but which, when introduced to the senate, was rejected. He lived to see the French Revolution, and to be a prophet of good concerning it. Horace Walpole writes in 1790:--“Mr. Burke’s pamphlet has quite turned Dr. Price’s head. He got on a table at their club, and toasted to our parliament being made a national convention.... Two more members got on the table--their pulpit,--and it broke down with them.” In another letter he says:--“Dr. Price, who had whetted his ancient talons last year to no purpose, has had them all drawn by Burke; and the revolutionary club is as much exploded as the Cock Lane Ghost.” In 1791, he died, and his name has survived Horace Walpole’s sarcasms with his own revolutionary principles. The information which he presented, was various and important. Gossip it would be called by some; but it was that gossip to which the historian appeals as a confirmation of his views. The poor’s rates were estimated by him at 1,556,804_l._ in 1777. He calculated that 651,580 was rather over than under the population of London in 1769. He explained that the most obvious sense of the expectation of life, was that particular number of years which a life of a given age had an equal chance of enjoying; and he gave it as his opinion, founded on extensive information, “that the custom of committing infants as soon as born to the care of foster-mothers, destroys more lives than sword, famine, and pestilence united.” By his calculations he showed, that-- In Stockholm on an average of 6 years 1 in 19 died. London ” ” 1 in 20-3/4 ” Rome ” ” 1 in 21-1/2 ” Northampton ” ” 1 in 26-1/2 ” Madeira ” ” 1 in 50 ” Liverpool ” ” 1 in 27 ” Berlin ” ” 1 in 26-1/2 ” Sweden (Stockholm excepted) ” 1 in 35 ” Vaud, Switzerland ” ” 1 in 45 ” Ackworth, Yorkshire ” 1 in 47 ” The varied and valuable information of Dr. Price was of great use in stimulating the minds of those having authority, an improved register of mortality being established at Chester in 1772, and at Warrington in 1773.