On his way thither he craved food and shelter of a Centaur named Pholus, who received him with generous hospitality, setting before him a good and plentiful repast. When Heracles expressed his surprise that at such a well-furnished board wine should be wanting, his host explained that the wine-cellar was the common property of all the Centaurs, and that it was against the rules for a cask to be broached, except all were present to partake of it. By dint of persuasion, however, Heracles prevailed on his kind host to make an exception in his favour; but the powerful, luscious odour of the good old wine soon spread over the mountains, and brought large numbers of Centaurs to the spot, all armed with huge rocks and fir-trees. Heracles drove them back with fire-brands, and then, following up his victory, pursued them with his arrows as far as Malea, where they took refuge in the cave of the kind old Centaur Chiron. Unfortunately, however, as Heracles was shooting at them with his poisoned darts, one of these pierced the knee of Chiron. When Heracles discovered that it was the friend of his early days that he had wounded, he was overcome with sorrow and regret. He at once extracted the arrow, and anointed the wound with a salve, the virtue of which had been taught him by Chiron himself. But all his efforts were unavailing. The wound, imbued with the deadly poison of the Hydra, was incurable, and so great was the agony of Chiron that, at the intercession of Heracles, death was sent him by the gods; for otherwise, being immortal, he would have been doomed to endless suffering.
-page 241, Berens