CEREMONIAL PROCESSION IN AN EGYPTIAN TEMPLE. (From a Restoration by the French Commission.)

The astronomical conditions of the rising of this star have, fortunately for us, been most minutely studied both by Biot and, in more recent times, by Oppolzer, and from their labours it seems to be abundantly clear that the rising of Sirius at the solstice was carefully watched certainly as early as 3285 B.C., according to Biot's calculations; and, further, that the rising of the same star was still studied in a relatively modern time. At the earlier date its heliacal rising was observed, but in later times means had been secured of noticing its cosmical rising, because although it rose long before the sun on the longest day 3000 B.C., it rose with the sun on the same day in the later times referred to. This "cosmical rising" observation was doubtless secured by the construction of their temples, as I have shown.

We are, then, astronomically on very firm ground indeed. We have got one step into the domain of mythology. I assume it is agreed that we have arrived at the certain conclusion that the goddess Hathor or Isis personified a star, Sirius, rising at the dawn; and that the temple of Isis at Denderah was built to watch it.

CHAPTER XX.
THE PERSONIFICATION OF STARS (CONTINUED)—THE TEMPLE OF HATHOR AT DENDERAH.

In Chapter XVII. I quoted from the inscriptions relating to the alignment of the axis of the temple of Hathor at Denderah. It will be remembered that the king, while stretching the cord, had his glance directed to the āk of the constellation of the Thigh. Further, we saw in the last chapter that the amplitude of the temple axis is 71½° N. of E.

A copy of Biot's plan giving his value of the orientation is given on the next page.

I have shown how truly the temple of Isis was pointed to Sirius. We have now to try to find a star towards which the temple of Hathor may have been pointed in like manner.

It will be generally understood that in an inquiry of this kind there are very many difficulties, chiefly depending upon the uncertainty of the building-date of the original foundation, and upon the indeterminate nature of the information available. But although we meet with these difficulties in the case of the temple of Hathor, there are many from which we are free. In the case of many of the temples in Egypt we have no knowledge of the tutelary divinity. For a great many temples no observational data exist; they have not been properly measured—that is, we do not know exactly in what direction they point or what their amplitudes are; and, further we do not know anything of the horizon at the temple building, so as to be able to make the necessary corrections due to heights of hills.