18 PHILOSOPHICAL SOCIETY OF WASHINGTON. 
Examp_e 2.—Required the date of Easter Sunday for the year 1884 
A. D., New Style. 
20 n = 60 
20 —n=19n =)57 
a 
ie 23+0+57\ | 
a= ( 30 ), =20 
20 20 3 
n= (5), —™ (38), (7a), 
=0+9x0x0=0+4+0=0 
p=q—h=20—0=—20 
z—( 1+? Cie ae: (a). ) 
it 
SS 
fe 704-5 a 35 Ms: 
im1- (74>) = (4°), =2 
Easter Sunday = March (21 + 1+ 20 + 2) 
= March 44 
= April (44 — 31) 
= April 13 
EXAMPLE 3.—Required date of Easter Sunday for the year 3966 
A. D., New Style. 
39 | 66 
2x 19 = 38] 57 = 3x19 : 
ile 
Bey _ (SX1+9 
n= ( 19 Ha 19 ) =u 
20 n = 280 
19 n = 20n — n= 266 
