Commentary on the Essence of Battle (1800) - Page 21

⚠The manuscript shows significant fading, particularly in the top section. There is blue ink staining or bleeding from the verso at the top. The red grid lines are somewhat smeared in the bottom table.

Prosperity

Vowel Essence Swarasa. The vowel U original: Ukara attains its rising; the months are the same as previously sought, and specifically in the month of Phalguna approx. February–March.
The vowel U reaches its rising here as well; in this seven-fold original: saptare confluence, the calculation original: sannaro should be understood as before. The day duration is 25 days and 46 ghatis (25-46) and 5 days and 38 ghatis (5-38), measured in single units.
Through this verse, the vowels for the Solstice Ayana, the Season Ritu, the Month Masa, and the Position Pada are explained. The vowel-durations for the days and the ghatis units of 24 minutes are given in the almanac. By the verse regarding the night, everything has been stated as 11 likely referring to the eleven intermediate risings mentioned on the previous page.

Position Vowel		A	I	U	E	O	A	I	U	E	O
A	I	Vaishakha	Ashvina	Chaitra	Jyeshtha	Magha	Spring Day	Summer Day 48	Monsoon Day 36	Autumn Day 28	Winter Day 12
Southern Path	Northern Path	Bhadra.	Shravana	Pausha	Kartika	Phalguna
Dark Fortnight	Bright Fortnight	M	Ashvina				Summer Day 12	Monsoon Day 24	Autumn Day 36	Winter Day 48	Late Winter 60
Solstice Vowel Cycle			Month Vowel Cycle				Seasonal Vowel Cycle by Solar Measure

This large table correlates the five primary vowels—A, I, U, E, O—with the Hindu lunar months and the solar seasons, assigning specific numeric values to the length of days or "influences" within those seasons.

Grid of the Lost Shadow Nashta-chaya Chakra from another text:

Mars	Mercury original abbreviation Va, likely for Budha/Mercury or Shukra/Venus	Jupiter	3 ½	2 ½	5 ½
9	I	U	6 ½	1 ½	4 ½
9		3	8 ½	7 ½	9 ½

The "Lost Shadow" (Nashta-chaya) is a calculation used to determine the time of day or a person's birth when a sundial shadow is not present, or to recover lost information through horary astrology.