198 Dr. G. Tlnbaut — On tie Surrjnprajnapti. [No. 4, 



number of parvans elapsed. Thus for instance if it is asljed : -when does 

 the first tithi become avamaratra ? add one to one (number of tlie tithi) 

 result two ; this multiplied by two gives four ; therefore pratipad is avam.a- 

 ratra in the fifth parvan, after four parvans have elapsed. Or again it may 

 be asked : when does the second tithi become avamaratra ? add one to two ; 

 result three ; this multiplied by two gives six, to -which thirty- one are 

 added. The result — -thirty-seven — shows that in the thirty-eighth parvan 

 the second tithi is avama-ratra. Thus all the avama-ratras for the first 

 half of the yuga are found and the same numbers recur during the second 

 half. The rationale of this rule is obvious. 



A simple rule is given for finding the tithis on which the avrittis of 

 the sun, i. e., the solstices take place. Multiply the number of the solstice 

 whose date you wish to know by 183 and add to the result three plus the 

 number of the solstice ; divide this sum by fifteen ; the quotient shows the 

 number of parvans elapsed, the remainder the number of the tithi of the 

 current parvan. This rule — being based on the relation of tithis to savana 

 days needs no explanation. The following list for the whole yuga results 

 from these calculations. 



1st Summer solstice ( — 10th solstice of the preceding yuga). 



1st dark half of sravana. 



.1st "Winter solstice, 7th „ „ „ magha. 



2nd S. S., 13th „ „ „ sravana. 



2nd W. S., 4th light half of magha. 



3rd S. S., loth „ ,, ,, sravana 



8rd W. S., 1st dark half of magha. 



4th S. S., 7th „ „ „ sravana. 



4tb W. S., 13th „ „ „ magha. 



5th S. S., 4th light half of sravana. 



5th W. S., 10th „ „ „ magha. 



The places which the sun occupies in the circle of the uakshatras at 

 the time of the solstices have been mentioned before ; the places of the 

 moon at the same periods can of course be easily calculated when it is re- 

 membered that at the beginning of the yuga the moon just enters Abhijit. 

 It is unnecessary to reproduce here the rule given for that purpose ; it may 



7 



only be mentioned that the — of a sidereal revolution which the moon 



performs during one solar ayana in excess of six complete revolutions con- 

 stitute the " dhruva rasi" for our case. The Suryaprajhapti likewise states 

 the places in which the lunar avrittis take place ; from the circumstance 

 that at the beginning of a yuga the moon is full in the first point of Abliijifc 

 and at the same time commences her progress towards the north, it follows 



