o, he considered the island of Thule as the most western
part of the then known world, and reckoned his longitude from thence.

With respect to the extent and discoveries of his voyage to the north,
there is great difference of opinion. The veracity of Pytheas is utterly
denied by Strabo and Polybius, and is strongly suspected by Dr. Vincent: on
the other hand, it has found able supporters in D'Anville, Huet, Gessner,
Murray of Goettingen, Gosselin, and Malte Brun; and in our opinion, though
it may not be easy to ascertain what was really the country which be
reached in his voyage, and though some of the particulars he mentions may
be fabulous, or irreconcileable with one another, yet it seems carrying
scepticism too far to reject, on these accounts, his voyage as altogether a
fiction.

The account is, that Pytheas departed from Marseilles, coasted Spain,
France, and the east or north-east side of Britain, as far as its northern
extremity. Taking his departure from this, he continued his voyage, as he
says, to the north, or perhaps to the north-east; and after six days'
navigation, he arrived at a land called Thule, which he states to be 46,300
stadia from the equator. So far there is nothing improbable or
inconsistent; but when he adds, that being there at the summer solstice, he
saw the sun touching the northern point of the horizon, and at the same
time asserts that the day and night were each of six months' continuance,
there is a palpable contradiction: and when he adds, that millet was
cultivated in the north of this country, and wheat in the south, and that
honey abounded, he mentions productions utterly incompatible with his
description of the climate and latitude.

As, however, this voyage forms an important epoch in the history of
discovery, it may be proper to endeavour to ascertain what country the
Thule of Pytheas really was. We have already observed, that the day's sail
of an ancient vessel was 500 stadia, or 50 miles; supposing the largest
stadia of 666-2/3 equal to one degree of the equator, if the vessel sailed
during the night as well as day, the course run was, on an average, 1000
stadia, or 100 miles. Now, as the voyage from the extremity of Britain to
Thule was of course not a coasting voyage, and as the nights in that
latitude, at the season of the year when the voyage was made, were very
short, (Pytheas says the night was reduced to two or three hours) we must
suppose that he sailed night as well