Brihat Samhita
चत्वारिंशत्(४०) त्रिंशद्(३०) द्विसमेता विंशतिर्(२२) द्विनवकं(१८) च । नव(९) मासार्धं(१५) दश चएकसंयुताः(११) प्राकृताद्यानाम् ॥ ७-१३ ॥
The effects of the Prākṛta and other courses of Mercury described above will last respectively for 40, 30, 22, 18, 9, 15 and 11 days.
english translation
catvAriMzat(40) triMzad(30) dvisametA viMzatir(22) dvinavakaM(18) ca । nava(9) mAsArdhaM(15) daza caekasaMyutAH(11) prAkRtAdyAnAm ॥ 7-13 ॥
hk transliteration by Sanscript