Nobody else mentions this astronomer: though it is pretty certain that Meton himself made more than one appointment with him for the purpose of observing solstices; and we may be sure that if either were behind his time, it was Meton.
"A Budget of Paradoxes, Volume II (of II)"
Augustus de Morgan
Martial civilisation having taken its rise within the tropics-indeed the equatorial continents, which only here and there extend far into the temperate zone, and two minor continents in the southern ocean, are the only well-peopled portions of the planet-the demarcation of the seasons afforded by the solstices have been comparatively disregarded.
"Across the Zodiac"
Percy Greg
As their lunar year would necessarily fall short of the true time, they rectified their calendar by solar observations made by means of a number of cylindrical columns raised on the high lands round Cuzco, which served them for taking azimuths; and, by measuring their shadows, they ascertained the exact times of the solstices.
"History-of-the-Conquest-of-Peru-with-a-preliminary-view-of-the-civilization-of-the-Incas"
Prescott, William Hickling