By _Table I._ below, the dominical letter for any year (New Style) for four thousand years from the beginning of the Christian Era may be found; and it will be readily seen how the Table could be extended indefinitely by continuing the centuries at the top in the same order. To find the dominical letter by this table, _look for the hundreds of years at the top, and for the years below a hundred, at the left hand_. Thus the letter for 1882 will be opposite the number 82, and in the column having 1800 at the top; that is, it will be _A_. In the same way, the letters for 1884, which is a leap-year, will be found to be _FE_. Having the dominical letter of any year, _Table II._ shows what days of every month of the year will be _Sundays_. To find the Sundays of any month in the year by this table, _look in the column, under the dominical letter, opposite the name of the month given at the left_. From the Sundays the date of any other day of the week can be readily found. Thus, if we wish to know on what day of the week Christmas falls in 1889, we look opposite December, under the letter _F_ (which we have found to be the dominical letter for the year), and find that the 22d of the month is a Sunday; the 25th, or Christmas, will then be Wednesday. In the same way we may find the day of the week corresponding to any date (New Style) in history. For instance, the 17th of June, 1775, the day of the fight at Bunker Hill, is found to have been a _Saturday_. These two tables then serve as a _perpetual almanac_. TABLE I. 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 --- --- --- ---- C E G BA