CONTENTS.

[PART FIRST.]
DEFINITIONS—HISTORY.
Pages.
[Chapter I.]—Definitions[11]
[Chapter II.]—History of the divisions of time, and the old Roman Calendar[12]
[Chapter III]—History of the reformation of the Calendar by Julius Cæsar[18]
[Chapter IV.]—History of the reformation of the Julian Calendar by Pope Gregory XIII[20]
[Chapter V.]—Peculiarities of the Roman Calendar[26]
[PART SECOND.]
MATHEMATICAL.
[Chapter I.]—Errors of the Julian Calendar[36]
[Chapter II.]—Errors of the Gregorian Calendar[38]
[Chapter III.]—Dominical Letter[39]
[Chapter IV.]—Rule for finding the Dominical Letter[44]
[Chapter V.]—Rule for finding the day of the week of any given date, for both Old and New Styles[50]
[Chapter VI.]—A simple method of finding the day of the week of events,which occur quadrennially;
the inaugural of the Presidents, the day of the week on which they have occurred
and on which they will occur for the next one hundred years		[61]
Some peculiarities concerning events which fall on the 29th of February[64]
[Chapter VII.]—Rule for finding the day of the week of events prior to the Christian era[68]
[PART THIRD.]
CYCLES—JULIAN PERIOD—EASTER.
[Chapter I.]—The Solar Cycle[73]
[Chapter II.]—The Lunar Cycle[75]
[Chapter III.]—The Lunar Cycle and Golden Number[77]
[Chapter IV.]—Cycle of Indiction, and the Julian Period[79]
[Chapter V.]—Easter[82]
[Chapter VI.]—A new and easy method of fixing the date of Easter[88]
[Chapter VII.]—Church feasts and fasts whose date depend on the date of Easter[108]
[Chapter VIII.]—Hebrew Calendar[124]
Appendix[134]
Errata[149]

OUR CALENDAR.

PART FIRST.

DEFINITIONS. HISTORY.

CHAPTER I.