1841.] 



Notes on Capt. Shortredes Scheme. 



605 



every year divisible by 4 receives a day, or has 366 days. But every 

 year divisible by 100 and not divisible by 400 has 365 days. The 

 year that is divisible by 100 is also divisible by 4, since 100 is a mul- 

 tiple of 4 : this part of the rule is therefore an exception to the first 

 part, since there are years divisible by 4, which instead of having 366 

 days, have only 365. These years may be considered as losing a day 

 to which they are entitled by the first part of the rule. The follow- 

 ing are the years that lose a day. (It is to be remembered that those 

 years which are divisible by 400 have 366 days : this is a part of the 

 Gregorian rule.) 



1700, 1800, 1900 2100, 2200, 2300, 



2500, 2600, 2700 2900, 3000, 3100, &c. 



27. Consequently, the correspondence of dates and days in Table (1) 

 will not answer continuously for the New Style : it will be interrupted 

 in the New Style at the lOOdth year, corresponding with the 4th year 

 of series 4 and marked (a) in the Table. The lOOdth year begins and 

 ends with e, because it is not a leap year ; the next century, that is, 

 the year 1 of the next century consequently begins with f ; and the 

 succession given in (1) will be again interrupted at the next hundredth 

 in the same place at (a), which place will now be occupied with c 

 and d, because the first year begins with f and not with a. Although 

 Table (1) is referred to in this place, it is not to be understood that the 

 letters a, b and c, have the same signification in New Style that they have 

 in Old Style : a in Old Style may be one day of the week, and in New 

 Style another. But proceeding as above, the days beginning the hun- 

 dreds of New Style may be found out, and the following Table formed, 

 marked (5): in which the letters are slightly altered in character for 

 the sake of distinction, but retain the same relation of time or succes- 

 sion. 



Week Days. 



e. 



c. 



a. 



/• 



Hundreds of New 



100 



200 



300 



400 



Style. 





















17 



18 



19 



20 





21 



22 



23 



24 





25 



26 



27 



28 





29 



30 



31 



32 





33 



34 



35 



36 



(Table 5) 



