Copy 1

Tables and tracts, relative to several arts and sciences / By James Ferguson, F.R.S.

  • James Ferguson
Date:
1767
Catalogue details

Licence: Public Domain Mark

Credit: Tables and tracts, relative to several arts and sciences / By James Ferguson, F.R.S. Source: Wellcome Collection.

    46/358 page 26
    [ ^6 ] In calculating forward from A. D. 1800, the eafieft way is to keep by the Old Stile, and then reduce it to the New, by adding the days difference of Stiles, which will be 12, from A. D. 1800 to 1900. If the Old and New Stiles had ex¬ ited from the beginning, there would have been no difference between them in A. D. 200. But from that time forward there would to the end of the world. And, in order to find always how many days (from the 200th year afer Chriffs birth) mult be added to the Old Stile to reduce it to the New, in any given Century, obferve the fol¬ lowing rule. Divide the number of the given Cen¬ tury by 4, and (without regarding the remainder, when there is any) add 3 to the quotient; then fubtraEi the fum from the number of the Century, and the remainder will be the number of days fought. Thus, for the 18th Century: which began with A. D. 1701, and will end with
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