IN the first set of Tables every JULIAN year therein contained, has a Line be∣longing to it that runs through all the Columns in that page: in which line it is adjusted with 2 other sorts of years that are concurrent with it; namely, first with DANIEL'S Chaldee years, & secondly with the years in PTOLEMY'S Canon.
The Column marked with B under it, shews what Iulian years are Bissextile, or leap-years: which, in every 20 years before Christ, are the 17, 13, 9, 5, & 1st. in the years after Christ, the 4, 8, 12, 16, & 20th. These are carefully to be observed in Computation; because, whereas every common year has 365 days, every leap-year has 366, one day being added after the 24th day of February, which makes that month to be of 29 days, which has but 28 in common years.
Column C is of the Iulian years before Christ from the year 445 downward till the Vulgar Aera begins, & then afterward this Column will be of the years of our Lord according to the Vulgar Aera. Every one of these Iulian years, beginning on the first of Ianuary, & ending Dec. 31, is divided into 2 Numbers of Days in the Columns of Daniel's years. Those of the first number always begin on the first day of Ianuary, & those of the second end on the last of December: except onely those in the lesser figures, whereof more will be said in its proper place.
The two Columns marked D, D, are for the years of Daniel's weeks; whereof the first VII weeks containing 49 years, the LXII following weeks containing 434 years, they make in all 483 years; every one of these years containing 360 days, as hath been already shewn.; and will more plainly appear in the 2d set of Tables. Tab. I, II.
The first of these 483 years begins at the Nisan of the 20th year of Artaxerxes. Now the first day of Nisan falling generally on the 21 day of April, according to the most learned Primate Usher's Account, & the 21 of April in the 20th of Artaxerxes falling into the Iulian year 445, as has been shewn in the last Dissertation; therefore Daniel's first year, beginning on the 21st of April, is placed in the line of that year 445 before Christ. And whereas after the 20 of April there are 255 days to the end of a Iulian year, this Number 255 is set down in that line, as being all that part of the 445th Iulian which concurs with the first year of the 483 before mentioned.
But this Number of 255 days wanting 105 of the 360 that are in every Chaldee year; therefore that first year of the 483 is placed a second time in the 1st Column D in the second line; & there it is made whole, by allotting to it the first 105 days of the Iulian year 444; namely, from Ian. 1 till Apr. 15 of that year: & whereas, be∣sides these 105 days, there remain 260 from Apr. 16th to the end of that Iulian year, these go into the second year of the 483; and the Number 2 is therefore placed before the 260 in the second line of that Table.
The 2 Columns marked F, F, contain in every line the 2 Numbers of days which divide the 365 days of the Iulian year in the beginning of that line, between those 2 of Daniel's 483 years which are in the very same line in the Columns D, D, above men∣tioned. Of these 2 Numbers of Days in every line it is to be always remembred, that the first Number begins on the first day of Ian. & the 2 Ends with the last of December. But besides,
Whereas in the Column over the letter G there is set down the month & day on which every one of Daniel's Chaldee years begins, it is to be understood that the next foregoing Chaldee year ends on the month & day next before it. As for ex∣ample; The first Daniel's year beginning on Apr. 21 in the Iulian year 445, it has with that & the last of December 255 days out of that Iulian year; & this first Da∣niel's year wanting yet 105 days of its 360, it has these out of the Iulian year 444 before Christ, beginning at Ian. 1st, & ending Apr. 15th. This appears in the