418 
G. Thibaut —Contributions to tlie 
[No. 4, 
how many savana days there are in a yuga, bad, when basing its ynga on 
the solar year, to explain how many natural days there are contained in the 
latter. We shall see that the yuga is divided besides into years of a differ¬ 
ent kind, namely, three lunar years consisting of twelve lunations each, and 
two lunar years consisting of thirteen lunations each. This division is that 
actually made use of in the course of the work, but it is of course only a 
secondary division originating from the wish of establishing an equation 
between solar and lunar revolutions. The knowledge of the solar year of 
366 days, or of the sun’s tropical revolution being accomplished in about 
366 days, forms the necessary presupposition not only for the yuga of the 
Jyotisha and Garga with its two intercalary lunar months, but also for the 
ancient vedic quinquennial yuga with its one intercalary (savana) month. 
I can therefore not agree with Prof. Weber when he supposes (p. 12) this 
solar year to be an importation from some foreign country. Both yugas, 
the vedic as well as that of the Jyotisha, would never have been formed, but 
for the knowledge of the difference of five years of 360 days and of sixty 
lunations from the time during which the sun performs five tropical revolu¬ 
tions, and for the resulting wish to make up for the wanting harmony. 
To return to the Jyotisha. The length of the solar year being de¬ 
fined and five years being set down as one yuga, the next question present¬ 
ing itself is for what reason just this number of years is combined into 
a cycle. 
V. 31, first half : 
“ There are (in one yoga) sixtv-one savana months, sixty-two lunar 
months, sixty-seven nakshatra months.” 
I. e. While the sun accomplishes five tropical revolutions, the moon 
accomplishes sixty-two synodical and sixty-seven periodical revolutions, and 
the whole period comprises sixty-one savana months of 30 natural days 
each. 
I again subjoin the fuller statements of Garga j first, regarding the 
savana measure: 
^ff^cTTfsr wirrf*T sranrrarte n 
f^TRi -qir n 
Regarding the lunar measure : 
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