The oracle of Apollo at Delphi is the most remarkable; and respecting it we are furnished with the greatest body of particulars. The locality of this oracle is said to have been occasioned by the following circumstance. A goat-herd fed his flocks on the acclivity of mount Parnassus. As the animals wandered here and there in pursuit of food, they happened to approach a deep and long chasm which appeared in the rock. From this chasm a vapour issued; and the goats had no sooner inhaled a portion of the vapour, than they began to play and frisk about with singular agility. The goat-herd, observing this, and curious to discover the cause, held his head over the chasm; when, in a short time, the fumes having ascended to his brain, he threw himself into a variety of strange attitudes, and uttered words, which probably he did not understand himself, but which were supposed to convey a prophetic meaning. This phenomenon was taken advantage of, and a temple to Apollo was erected on the spot. The credulous many believed that here was obviously a centre and focus of divine inspiration. On this mountain Apollo was said to have slain the serpent Python. The apartment of the oracle was immediately over the chasm from which the vapour issued. A priestess delivered the responses, who was called Pythia, probably in commemoration of the exploit which had been performed by Apollo. She sat upon a tripod, or three-legged stool, perforated with holes, over the seat of the vapours. After a time, her figure enlarged itself, her hair stood on end, her complexion and features became altered, her heart panted and her bosom swelled, and her voice grew more than human. In this condition she uttered a number of wild and incoherent phrases, which were supposed to be dictated by the God. The questions which were offered by those who came to consult the oracle were then proposed to her, and her answers taken down by the priest, whose office was to arrange and methodize them, and put them into hexameter verse, after which they were delivered to the votaries. The priestess could only be consulted on one day in every month.