Having thus exhibited a view of the discoveries in geography, the advances in the sciences connected with it, and the commercial enterprises of the Egyptians, while under the dominion of the Ptolemies, it will be proper, before beginning an account of the geographical knowledge and commercial enterprises of the Romans (who, by their conquest of Egypt, may be said to have absorbed all the geographical knowledge, as well as all the commerce of the world, at that period), to recapitulate the extent of the Egyptian geography and commerce, especially towards the east We shall direct our retrospect to this quarter, because the commodities of the east being most prized, it was the grand object of the sovereigns and merchants of Egypt, to extend and facilitate the intercourse with that quarter of the globe as much as possible. And we are induced to undertake the retrospect, because the exact limit of the geographical knowledge and commercial enterprise of the Ptolemies is differently fixed by different authors: some maintaining that the Egyptians had a regular and extensive trade directly with India, and of course, were well acquainted with the seas and coasts beyond the Red Sea; while other authors maintain, that they never passed the straits of Babelmandeb, and that even within the straits, their geographical knowledge and commercial enterprises were very limited. It cannot be doubted that commerce and the spirit of discovery flourished with more vigour, and pushed themselves to a greater distance in the reigns of Ptolemy Philadelphus, and Ptolemy Euergetes, than in the reign of any of their successors. If, therefore, there are no proofs or traces of a direct and regular trade with India in their time, we may safely conclude it did not exist in Egypt, previously to the conquest of that country by the Romans.