In 1812 Freycinet published a large folio volume of charts. The sixth chart in the book is most valuable for our purpose. It is called a "Carte generale du Detroit de Bass." Its importance lies in the fact that by means of a dotted line it marks the track of Le Geographe throughout her course. Now, this track-chart shows clearly that the ship was never, at any moment, nearer than six or seven miles to Port Phillip heads. On the greater part of her course across the so-called Baie Talleyrand she was much farther from the land than that. On no part of her course would it have been possible for a person at the masthead to see either the entrance to Port Phillip or any part of the port itself. It shows that the ship, while steering across from Cape Schanck in the direction of Cape Otway, diverted a few miles to the north-west, and then abruptly turned south-west. From any part of this course, the stretch of coast where Port Phillip heads are would present the appearance of an unbroken wall of rock, the gap being covered by the overlapping land on the western side. The sudden north-westerly diversion, and then the sharp turn south-west, seem to indicate that Baudin thought it well to sail up to see if there was anything worth examining at the head of the bight, and concluded that there was not. There can be no more authoritative opinion on the possibility of doing what Peron and Freycinet claimed was done, than that of a member of the Port Phillip pilot service. The pilot steamer is almost incessantly on duty in what the French chose to call Baie Talleyrand. The pilots know the ground intimately; they are familiar with every part of the coast; they see it in all weathers; they observe the entrance under all conditions of light and atmosphere. Wishing, therefore, to confirm an opinion already adequately supported, the writer showed two large photographed copies of two of Freycinet's charts to an experienced member of the pilot service, and asked him whether it would have been possible for Port Phillip to be seen from the situation indicated, or anywhere in the vicinity, under any conceivable conditions. He at once replied that it was utterly impossible.* (* Indeed, he promptly said, in the direct, emphatic speech which is the special privilege of sailors: "The man who said he saw Port Phillip or the entrance from any point in that neighbourhood would be lying.") Even if Le Geographe had sailed close along shore, he further observed, nothing like the contour of the port shown on Freycinet's chart could have been drawn from the masthead; and the track-chart shows that the ship's course was several miles from the coast. In fact, the chart shows more than could have been seen if the French had sailed close up to the heads and looked inside.