Page:The geography of Strabo (1854) Volume 1.djvu/95

 CHAP. in. 6, 7. INTRODUCTION. 81 higher than that of the Propontis and adjoining ocean, and even attempting to explain the cause thereof: viz. that the bed of the Euxine is filled up and choked by the deposit of the rivers which flow into it ; and its waters in consequence driven out into the neighbouring sea. The same theory he would apply in respect to the Mediterranean and Atlantic, alleging that the bed of the former is higher than that of the latter, in consequence of the number of rivers which flow into it, and the alluvium they carry along with them. In that case there ought to be a like influx at the Pillars and Calpe, 1 as there is at Byzantium. But I waive this objection, as it might be asserted that the influx was the same in both places, but owing to the interference of the ebb and flow of the sea, be- came imperceptible. 6. I rather make this inquiry : If there were any reason why, before the outlet was opened at Byzantium, the bed of the Euxine (being deeper than either that of the Propontis 2 or of the adjoining sea 3 ) should not gradually have become more shallow by the deposit of the rivers which flow into it, allow- ing it formerly either to have been a sea, or merely a vast lake greater than the Palus Maeotis ? This proposition being conceded, I would next ask, whether before this the bed of the Euxine would not have been brought to the same level as the Propontis, and in that case, the pressure being counter- poised, the overflowing of the water have been thus avoided ; and if after the Euxine had been filled up, the superfluous waters would not naturally have forced a passage and flowed off, and by their commingling and power have caused the Euxine and Propontis to flow into each other, and thus become one sea ? no matter, as I said above, whether formerly it were a sea or a lake, though latterly certainly a sea. This also being conceded, they must allow that the present efflux depends neither upon the elevation nor the inclination of the bed, as Strato's theory would have us consider it. 7. We would apply the same arguments to the whole of the Mediterranean and Atlantic, and account for the efflux of the former, not by any [supposed] difference between the elevation and inclination of its bed and of that of the Atlantic, but at- 1 This city of Calpe was near Mount Calpe, one of the Pillars of Her- cules. 2 Sea of Marmora. * The ./Egaean.