ADDITIONS. 



•NOTE to an ESSAY on the NOTIONS of the HINDU ASTRONOMERS, 

 concerning the Phecession of the Equinoxes ; by H. T. C. late 

 President. 



Having reconsidered the passage of Vishnu Chandra quoted by the scholiast 

 of Brahmegupta,* I am satisfied that the corrupt part of the text does not relate 

 to the number, which appears complete without it; and I venture with confidence 

 on an emendation, which the defect of one syllable in the verse shows to be 

 necessary, and which perfects the sense. The passage so restored is as follows : 

 the syllable, which I conjecturally re-establish, (and no other correction is attempted 

 nor required,) being distinguished by Italics. 



1 Tasya chatra bha-chid rudra-crita-nandash'tacendavah Ayanasya yugani proctam 

 Brahmarcadi-matam pura.' 



' Its revolutions through the asterisms are here [in the calpa] a hundred and 

 eighty-nine thousand, four hundred and eleven. This is termed a yuga of the 

 solstice, as of old admitted by Brahma, Arca, and the rest.' 



The number of 189411 complete revolutions, in a calpa of 4320000000 years, 

 gives an annual precession of 56" 49^'". 



The age of Vishnu Chandra must be placed between those of Aryabhat't'a 

 and Brahmegupta: for a passage of the last mentioned author affirms, that both he 

 and Srishe'na compiled their Vasishf ha and Romacasiddhcintas from Aryabhatta, 

 and Vijayanandi, &c. taking the mean motions of the sun and moon, with the 

 lunar apogee and nodes, and other specified particulars, from the first of these 

 authorities. To determine the period when this original author flourished is a 

 material and interesting object of research ; not only as he was founder of a sect in 



* See page 215. 



