Select exercises for young proficients in the mathematicks ... / By Thomas Simpson.

  • Simpson, Thomas, 1710-1761.
Date:
1752
Catalogue details

Licence: Public Domain Mark

Credit: Select exercises for young proficients in the mathematicks ... / By Thomas Simpson. Source: Wellcome Collection.

    324/348 (page 310)
    of Fifteen, in comparifon cf the Numbers that arrive There, between the Ages of Fifteen and Thirty 5 though the Number of all the Living comprehended in the former Period is much greater than That in the Latter. Add to this, that the Bills of Mortality, with Re- fpedt to fmall Ages, are alfo lower than they would otherwife be, on account of a great Number of Youth, of the Better Sort, who are fent into the Country for the Benefit of Air and Education. Thefe, at their Return, together with the Arrival of a Multitude of Working People (who, after having ferved an Ap- prenticefhip in the Country, are willing to learn Ex¬ perience, and try their Fortune in Town) very much increafe the Body of Inhabitants : And it is chiefly to this Confideration that the great Increafe in the Bills of Mortality after the Age of Twenty, like a Rivulet fwoln by a fuduen Rain, is to be afcribed : For I dare affirm, that there is Nothing in Man’s Conftitution whereby fo great a Difproportion during fo (hort an In¬ terval, can be, phyfically, accounted for: Nor does it feem, in the leaf!:, Reafonable to fuppofe that a Perfon, of twenty five Years of Age, has more than 4 times a greater Chance to die within the Compafs of an Year, than One of fifteen; and yet this is the Cafe according to the Table, I have been condemned for altering — As to the Reafon of my Beginning the Table with the Number 1280 (inftead of 1000,, it was with no other Intent than to avoid Trouble in making, what I judged, the neceflary Alterations. Nor does it at all fignify what Number is made the Radix of a Table of this Kind, pro¬ vided the fame Proportions are preferved throughout. However, in conformity to Cuftom, I have here been at the Pains to reduce the faid Table to the com- jnon Radix. , • Amongft Thofe who have been fevers on the above Alterations, there is a certain Foreign Gentleman, M. Parcieux, Member of the Royal Academy of Sciences at Paris, whom I muft not pafs by without a paore particular Notice. This Gentleman, in a Book