tallest oaks, &c. as far as to New Mexico, a thing not to be seen any
where else on these coasts. The coast alone will supply all the
products of North America, and is as convenient to navigation as any
part of it, without going nigh the Missisippi; so that it is with good
reason our author says, "That country promises great riches to such as
shall inhabit it, from the excellent quality of its lands," [Footnote:
See p. 163.] in such a climate.

These are the productions of the dry (we cannot call them high)
grounds: the swamps, with which this coast abounds, are still more
fruitful, and abundantly compensate the avidity and barrenness of the
soil around them. They bear rice in such plenty, especially the marsh
about New Orleans, "That the inhabitants reap the greatest advantage
from it, and reckon it the manna of the land." [Footnote: _Dumont_,
I. 15.] It was such marshes on the Nile, in the same climate, that were
the granary of the Roman empire. And from a few such marshes in
Carolina, not to be compared to those on the Missisippi, either in
extent or fertility, Britain receives at least two or three hundred
thousand pounds a year, and might vend twice that value of their
products.

But however barren or noxious these low lands on the sea coast may be,
they extend but a little way about the Missisippi, not above thirty or
forty miles in a straight line, on the east side of that river, and
about twice as far on the west side; in which last, the lands are, in
recompence, much more fruitful. To follow the course of the river
indeed, which runs very obliquely south-east and north-west, as well
as crooked, they reckon it eighty-two leagues from the mouth of the
river to the Cut-Point, where the high lands begin.