Amundsen's trial trip in the Fram and Nansen's voyage in the Frithjof
were made with the special object of studying the Gulf Stream in
the ocean to the west of the British Isles, and by the help of these
investigations it is now possible to chart the current and the extent
of the various volumes of water at different depths in this region
at that time.

A series of stations taken within the same region during Murray
and Hjort's expedition completes the survey, and provides valuable
material for comparison.

After sailing from Norway over the North Sea, the Fram passed through
the English Channel in June, 1910, and the first station was taken on
June 20, to the south of Ireland, in lat. 50deg. 50' N. and long. 10deg.
15' W., after which thirteen stations were taken to the westward,
to lat. 58deg. 16' N. and long. 17deg. 50' W., where the ship was on June
27. Her course then went in a northerly direction to lat. 57deg. 59'
N. and long. 15deg. 8' W., from which point a section of eleven stations
(Nos. 15 -- 25) was made straight across the Gulf Stream to the bank
on the north of Scotland, in lat. 59deg. 88' N. and long. 4deg. 44' W. The
voyage and the stations are represented in Fig. 2. Temperatures and
samples of water were taken at all the twenty-four stations at the
following depths: surface, 5, 10, 20, 30, 40, 50, 75, 100, 150, 200,
300, 400, and 500 metres (2.7, 5.4, 10.9, 16.3, 21.8, 27.2, 40.8,
54.5, 81.7, 109, 163.5, 218, and 272.5 fathoms) -- or less, where
the depth was not so great.

The Fram's southerly section, from Station 1 to 13 (see Fig. 3)
is divided into two parts at Station 10, on the Porcupine Bank,
south-west of Ireland. The eastern part, between Stations 1 and 10,