Helios
2 of the 7 encyclopedias on this shelf carry an entry for Helios. Both are reproduced below, so you can see where they agree and where they differ.
Aiton's Encyclopedia (1910)
he'll-os, in Greek mythology, the god of the sun. He was the son of Hyperion and Thea and brother of Eos (Aurora) and Selene. Sometimes he is called by his father's name. Homer's account of this god is very simple. Helios arises in the east, traverses the heavens, and descends into darkness and Oceanus in the west. The later poets have woven many fanciful ideas into their stories of Helios. According to these writers he dwells in a palace behind Colchis with his sister Eos. Each day he issues from the portals of the dawn and drives his splendid steeds across the sky. Having passed through the gates of evening, he cools his horses in the ocean and drives them into a marvelous golden bowl built by Hephaestus, which bears them along the northern shore of ocean back to Colchis. Helios sees all things, and occasionally has great influence upon mortals by telling of some event which he has beheld. Helios came to be confounded with Apollo, but there was a marked difference in the original character of the two gods. Helios represents the physical phenomena of light, while Apollo stands for mental illumination. The Romans called the sun god Sol. The famous statue called the Colossus of Rhodes is supposed to have been erected in honor of Helios. White rams, goats, bulls, lambs, and especially white horses, were sacrificed to Helios. The cock that crows in the dawn was sacred to him.
1000 Classical Characters (1900)
Called Sol by the Romans, the god of the sun. He was the son of Hyperion and Thea; and a brother of Selene and Eos. From his father he is frequently called Hyperionides, or Hyperion, the latter of which is an abridged form of the patronymic, 2026 Editor's Note: In the Odyssey, Helios plays a significant role when Odysseus's men impiously kill and eat his sacred cattle at Thrinacia; Helios appeals to Zeus for vengeance, and Zeus destroys the ship with a thunderbolt, sparing only Odysseus. Helios was particularly venerated at Rhodes, where he was the patron god, and the island was home to the Colossus of Rhodes, a gigantic statue of the god that stood at the port until an earthquake destroyed it. (Ed: BR 2026-06-17)