E. g. Let the Cycle of the Sun be 3; of the Moon 4; and of the Indiction, 5. Multiply 3. by 4845, and you have 14535; and 4. by 4200. comes 16800; and 5. by 6916. comes 34580. The Sum of the products is 65915, which being divided by 7980. gives 8. for the Quotient, and the number 2075. which remains, is the Year of the Julian Period.

Some learned Mathematicians of Paris, to whom the said P. de Billy, did propose this Problem, have found the Demonstration thereof; as the same Journal intimates.


An Account of some Books, not long since published.

I. TENTAMINA PHYSICO-THEOLOGICA DE DEO, Sive THEOLOGIA SCHOLASTICA, ad Normam Novæ & Reformatæ Philosophiæ concinnata, & duobus libris comprehensa. Quorum altero, de Dei existentia adversus Atheos & Epicureos ex ipsorummet Principiis disputatur; altero, de ejusdem Essentia & Attributis; primò secundum Theologiam Ethnicam, ubi explicatur, Quantum hactenus Alii in Gentilium sententiis, de summi Numinis Natura eruendis, hallucinati fuerint; deinde secundum Theologiam Christianam: Et quid de Divina Essentia ac Attributis statuendum sit, diceretur. Quibus postremò accedit specialis Dissertatio de Primo Numinis Attributo, ÆTERNITATE. Authore Samule Parkero, A. M.

This Treatise, published the last year, would sooner have been taken notice of in these Tracts, had it not escaped the Publishers view till of late, when he, upon serious perusal, found it very worthy the recommending it to all sorts of persons; and particularly to those who either please themselves with that fond opinion, That Philosophy is the Apprentiship of Atheisme; or hearken to the aspersions, that are generally laid upon the Reformation of Philosophy.

This excellent piece removes both these; and being joyned and compared with the truly Noble Mr. Boyle's Considerations in his First part of the

Usefulness of Experimental-Natural Philosophy, will strongly evince, How Much that Philosophy, which searches out the real Productions of Nature (the true Works of God) does manifest the Divine Glory more, than the Notionals of the Gentiles.

This Author (now a Fellow of the Royal Society) delivers his Matter in two Books.

Lib. 1. Cap. 1. Atheists are disappointed of the Authority of Epicurus, and of other Antient Philosophers, for their gross Atheisme.