t, except the
Peutingerian tables. Sanuto, as we have already noticed, in giving an
abstract of the commercial information contained in his memorial, lived in
1324.

In the monastery of St. Michael di Murano, there is a planisphere, said to
be drawn up in 1459, by Fra Mauro, which contains a report of a ship from
India having passed the extreme point south, 2000 miles towards the west
and southwest in 1420.

Ramusio describes a map, supposed to be this, which he states to have been
drawn up for the elucidation of Marco Polo's travels.

On this map, so far as it relates to the circumnavigation of Africa, Dr.
Vincent has given a dissertation, having procured a _fac-simile_ copy
from Venice, which is deposited in the British Museum; the substance of
this dissertation we shall here compress. He divides his dissertation into
three parts. First, whether this was the map noticed by Ramusio, and by him
supposed to be drawn up to elucidate the travels of Marco Polo. On this
point he concludes that it was the map referred to by Ramusio, but that his
information respecting it is not correct. The second point to be determined
is, whether the map procured from Venice was really executed by Mauro, and
whether it existed previous to the Portuguese discoveries on the west coast
of Africa. Manro lived in the reign of Alphonso the Fifth, that is between
1438 and 1480; the whole of this map, therefore, is prior to Diaz and Gama,
two celebrated Portuguese navigators. Consequently, if it can be proved
that the map obtained by Dr. Vincent is genuine, it must have existed
previous to the Portuguese discoveries. The proof of the genuineness of the
map is derived from the date on the planisphere, 1459; the internal
evidence on the work itself; and the fact that Alphonso, or Prince Henry of
Portugal, who died in 1463, received a copy of this map from Venice, and
deposited it in the monastery of Alcobaca, where it is still kept. The sum
paid for this copy, and the account of expenditure, are detailed in a MS.
account in the monastery of St. Michael.

The third, and by far the most important part of Dr. Vincent's
dissertation, examines what the map contains respecting the termination cf
Africa to the south. On the first inspection of the map it is evident, that
the author has not implicitly followed Ptolemy, as he professes to do. The
centre of the habitable world is fixed at Bagdat. Asia and Europe he
defines rationally, and Africa so far as r