2 adverbs to describe how to meridians

noon; midday, noonday; noontide, meridian, prime; nooning, noontime.

Favored beyond our expectations, all our registers had been recovered, with the exception of one of my journals, which contained the notes and incidents of travel, and topographical descriptions, a number of scattered astronomical observations, principally meridian altitudes of the sun, and our barometrical register west of Laramie.

2 adverbs to describe how to  meridians  - Adverbs for  meridians