Natural and political observations mentioned in a following index, and made upon the bills of mortality by John Graunt ... ; with reference to the government, religion, trade, growth, ayre, diseases, and the several changes of the said city.

Advertisements for the better understand∣ing of the several Tables: videlicet, Concerning the Table of Casualties con∣sisting of thirty Columns.

THe first Column contains all the Casualties hap∣pening within the 22 single years mentioned in this Bill.

The 14 next Columns contain two of the last Septe∣naries of years, which being the latest are first set down.

The 8 next Columns represent the 8 first years, wherein the Casualties were taken notice off.

Memorandum, That the 10 years between 1636 and 1647 are omitted as containing nothing Extra∣ordinary, and as not consistent with the Incapacity of a Sheet.

The 5 next Columns are the 8 years from 1629 to 1636 brought into 2 Quaternions, and the 12 of the 14 last years brought into three more; that Compari∣son might be made between each 4 years taken toge∣ther, as well as each single year apart.

The next Column contains 3 years together, taken at 10 years distance from each other; that the distant years, as well as consequent, might be compared with the whole 20, each of the 5 Quaternions, and each of the 22 single years.

The last Column contains the total of the 15 Qua∣ternions, or 25 years.

The Number 229250 is the total of all the Burials in the said 20 years, as 34190 is of the Burialsin the said 3 distant years. Where note that the ⅓ of the latter total is 11396 and the 1/20 of the former is 11462; differ∣ing but 66 from each other in so great a sum, videlicet scarce 1/200 part.