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