28. The plan of the temples is as follows.
At the entrance into the temenus is a paved floor, in breadth about a plethrum, or even less; its length is three or four times as great, and in some instances even more. This part is called Dromos, and is mentioned by Callimachus,
“this is the Dromos, sacred to Anubis.”
Throughout the whole length on each side are placed stone sphinxes, at the distance of 20 cubits or a little more from each other, so that there is one row of sphinxes on the right hand, and another on the left. Next after the sphinxes is a large propylon, then on proceeding further, another propylon, and then another. Neither the number of the propyla nor of the sphinxes is determined by any rule. They are different in different temples, as well as the length and breadth of the Dromi.
Next to the propyla is the naos, which has a large and considerable pronaos; the sanctuary in proportion; there is no statue, at least not in human shape, but a representation of some of the brute animals. On each side of the pronaos project what are called the wings. These are two walls of equal height with the naos. At first the distance between them is a little more than the breadth of the foundation of the naos.[849] As you proceed onwards, the [base] lines incline towards one another till they approach within 50 or 60 cubits. These walls have large sculptured figures, very much like the Tyrrhenian (Etruscan) and very ancient works among the Greeks.
There is also a building with a great number of pillars, as at Memphis, in the barbaric style; for, except the magnitude and number and rows of pillars, there is nothing pleasing nor easily described,[850] but rather a display of labour wasted.
29. At Heliopolis we saw large buildings in which the priests lived. For it is said that anciently this was the principal residence of the priests, who studied philosophy and astronomy. But there are no longer either such a body of persons or such pursuits. No one was pointed out to us on the spot, as presiding over these studies, but only persons who performed sacred rites, and who explained to strangers [the peculiarities of] the temples.
A person of the name of Chæremon accompanied the governor, Ælius Gallus, in his journey from Alexandreia into Egypt, and pretended to some knowledge of this kind, but he was generally ridiculed for his boasting and ignorance. The houses of the priests, and the residences of Plato and of Eudoxus, were shown to us. Eudoxus came here with Plato, and, according to some writers, lived thirteen years in the society of the priests. For the latter were distinguished for their knowledge of the heavenly bodies, but were mysterious and uncommunicative, yet after a time were prevailed upon by courtesy to acquaint them with some of the principles of their science, but the barbarians concealed the greater part of them. They had, however, communicated the knowledge of the additional portions of the day and night, in the space of 365 days, necessary to complete the annual period; and, at that time, the length of the year was unknown to the Greeks, as were many other things, until later astronomers received them from the persons who translated the records of the priests into the Greek language, and even now derive knowledge from their writings and from those of the Chaldeans.[851]
30. After Heliopolis is the “Nile above the Delta.” The country on the right hand, as you go up the Nile, is called Libya, as well as that near Alexandreia and the lake Mareotis; the country on the left hand is called Arabia. The territory belonging to Heliopolis is in Arabia, but the city Cercesura is in Libya, and situated opposite to the observatory of Eudoxus. For there is shown an observing station in front of Heliopolis, as there is in front of Cnidus, where Eudoxus marked certain motions of the heavenly bodies. This is the Letopolite Nome.
In sailing up the river we meet with Babylon, a strong fortress, built by some Babylonians who had taken refuge there, and had obtained permission from the kings to establish a settlement in that place. At present it is an encampment for one of the three legions which garrison Egypt. There is a mountainous ridge, which extends from the encampment as far as the Nile. At this ridge are wheels and screws, by which water is raised from the river, and one hundred and fifty prisoners are [thus] employed.