THE SURYA' SIDDHA'NTA, &C. 561 



Then s -{• ^ = h 



n 



And j^zis =■ ^?- * 



42. From the formula j- + - = //, the folio win oj 

 table hao been computed, shewing the length of the 

 Hindu year, at different periods by inspection. 



1^/ Bi^sack 3601 A. D. 499 365"-' lo""' 32' 5l" 39'" 



3701 599 15 32 35 38 



3801 699 15 32 20 28 



3901 799 15 32 6 4 



4001 899 15 31 52 24 



4101 999 15 31 39 23 



4201 1099 15 31 26 59 



4301 1199 15 31 15 11 



4401 1299 15 31 3 54 



4501 1399 15 30 53 7 



4601 1499 ■ 15 30 42 49 



4701 ln99 15 30 32 57 



4801 1699 15 30 23 29 



4901 1799 • -15 50 14 25 



This much may serve to explain the principles 

 on which the length of the Hindu year depends. 

 There is however another method for determining 

 the length of the year, from the precession of the 

 equinoxes, which 1 shall now explain. 



43. I HAVE already observed (§ 37), that according 

 to Varaha, the year 3601 of the Call i/itg, began 

 at the instant of the vernal equinox (in A. D. 499), 

 The same astronomer fixed also the rate of pre- 

 cession at 54" annually. Hence by knowing the 

 time of coincidence of the Hindu and European 

 spheres, and the rate of precession, we can easily de- 

 termine from thence, the instant at which the Hindu 



1 year 



