26 



MEASURE OF TIME. 



365 days, or 



52 weeks 1 day 



12 calendar months j 

 100 years 



make 1 year, marked yr. 



1 century, 



C. 



The calendar year is divided as follows : 



Season. 



Winter 



Spring 



Summer 



Autumn 



Winter 



Months. 



1. January 



2. February 

 f 3. March 



4. April 

 t 5. May 

 6. June 



Y. July 

 8. August 

 f 9. September 

 | 10. October 

 [ 11. November 

 12. December 



No. of days. 



31 



28 or 29 



31 



30 



31 



30 



31 



31 



30 



31 



30 



31 



365 or 366. 



Abbreviations. 



Jan. 

 Feb. 

 Mar. 

 Apr. 



Jim. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



NOTES. 1. The exact length of the solar year is 365 days 

 5 h. 48 min. 49 sec. ; but, for convenience, it is reckoned 

 11 min. 11 sec. more than this, or 365 da. 6 h. = 365J 

 days. This day in four years makes 1 day, which every 

 fourth year (called Bissextile or leap year) is added to 

 the shortest month, giving it 29 days. The numbers de- 



