The works of that late most excellent philosopher and astronomer, Sir George Wharton, bar. collected into one volume / by John Gadbvry ...

Notae Vulgares, or the Common Notes of the Julian year.

1. Of the Lunar Cycle, commonly called the Golden Number.

Meton (th' Athenian) first this Cycle found, Which Nineteen civil years devolveth round: For all Lunations make return therein, Nigh to the Place where first they did begin. To find it, add One to the year of Christ, (For when his Star appeared in the East, That was the Prime) then by Nineteen divide The Aggregate, and what remains beside Resolves the doubt; The Quotient doth declare How many Periods revolved are: But when (Division made) there leaveth nought, Nineteen it selfe's the Golden Number sought.

2. Of the Solar Cycle, or Cycle of the Sun.

'Tis called Solar, for that thereby's known The Sundays Letter, not his Motion: Now, if to th' year propos'd (Since Christ did come) You add thrice three, and then divide the Sum By twenty-eight; what's left (that being done) Is evermore the Cycle of the Sun. If Nought remain, tis the whole Cycle out, The Quotus counts how oft 't hath wheel'd about:

3. Of the Dominical Letter.

Seven Hebdomaick Letters used be, And those are A. B. C. D. E. F. G. The Solar Cycle shews us which doth stand For Sunday, when Bissextile is at hand. The Sunday Letter (stil'd Dominical) Upon what day o'th' Month that day doth fall: Behold the Table, and you'l quickly see, How they from year to year do still agree, Until the Cycle be compleat; and then There's nothing further, but begin't agen.

Tabulae literarum Dominicalium.
1. G. F.	2. E.	3. D.	4. C.	5. B. A.	6. G.	7. F.
8. E.	9. D. C.	10. B.	11. A.	12. G.	13. F. E.	14. D.
15. C.	16. B.	17. A. G.	18. F.	19. E.	20. D.	21. C. B.
22. A.	23. G.	24. F.	25. E.D.	26. C.	27. B.	28. A.

4. Of the Epact.

Epactae from 〈 in non-Latin alphabet 〉〈 in non-Latin alphabet 〉 is deriv'd, Th' are adventitious Days, fitly contriv'd To adequate the difference that appears Betwixt the Solar, and the Lunar years: To know which by Eleven multiply The Golden Number; part the factus by Thirty; and (if your Work be not amiss) The Number that remaineth Epact is.

5. Of the Roman Indiction.

This Cycle (when Augustus taxed all The conquer'd World) became Indictional; That even the places which remotest laid Might know when Rome would have her Tribute paid, How many Peaceful years were overpast, And what to come, before th' unwelcome last: The first Fifteen (whilst she her Rule did hold) Requir'd (in token of Dominion) Gold: The second, Silver (for the Souldiers Hire) Iron the Third, (their Armour to repair.) But now the Roman Legions broken are, 'Tis useless, though it keep the Calendar. For this, add to the year of JESUS, Three, And let the Sum by Fifteen parted be: For what remaineth is the thing desir'd, The Quotient, the Periods expir'd: If Nought remain, thrice, Five this Name doth bear; Caesar's Decree proclaims it tribute year.

The use of these Notes is to find out the Move∣able Feasts in both Accounts, viz. Julian, and Gregorian.