After having explored Dieppe, I must now conduct you without the walls, to the castle of Arques and to Cæsar's camp, both of which are in its immediate neighborhood. At some future time you may thank me for pointing out these objects to you, for should you ever visit Dieppe, your residence may be prolonged beyond your wishes, by the usual mischances which attend the traveller. And in that case, a walk to these relics of military architecture will furnish a better employment than thumbing the old newspaper of the inn, or even than the contemplation of the diligences as they come in, or of the packets as they are not going out, for I am anticipating that you are becalmed, and that the pennons are flagging from the mast. With respect to my walk, let me be allowed to begin by introducing you to a friend of mine at Dieppe, M. Gaillon, an obliging, sensible, and well-informed young man, as well as an ardent botanist, my companion in this walk, and the source of much of the information I possess respecting these places. The intrenchment, commonly known by the name of Cæsar's camp, or even more generally in the country by that of "_la Cité de Limes_," and in old writings, of "_Civitas Limarum_," is situated upon the brink of the cliff, about two miles to the east of Dieppe, on the road leading to Eu, and still preserves in a state of perfection its ancient form and character; though necessarily reduced in the height of its vallum by the operation of time, and probably also diminished in its size by the gradual encroachments of the ocean. Upon its shape, which is an irregular triangle, it may be well to make a preliminary observation, that this was necessarily prescribed by the scite; and that, however the Romans might commonly prefer a square outline for their temporary encampments, we have abundant proofs that they only adhered to this plan when it was perfectly conformable to the nature of the ground, but that when they fortified any commanding position, upon which a rectangular rampart could not be seated, their intrenchments were made to follow the sinuosities of the hill. In the present instance the northern side, the longest, extending nearly five thousand feet, fronts the channel, and it required no other defence than was afforded by the perpendicular face of the cliff, here more than two hundred feet in height. The western side, the second in length, and not greatly inferior to the first, after running about three thousand feet from the sea, in a tolerably straight line southward, suddenly bends to the east, and forms two semi-circles, of one of which the radius is turned from the camp, and of the other into it. The third side is scarcely more than half the length of the others, and runs nearly straight from south to north, where it again unites with the cliff. Of the two last-mentioned sides the first is difficult of access; from its position at the summit of a steep hill; but it is still protected by a vallum from thirty to forty feet high,