TERRE REN 
\ v 15% a 
Io FRIDTJOF NANSEN. M.-N. KI. 
well, where both kinds of determinations have been made (Makaroff’s 
samples, Amundsen’s samples in selters-bottles, many samples of deep- 
water from the cruise of the Michael Sars 1900, and the samples from 
Wollebæk's Stat. II).” 
Jakob Schetelig. 
Two series of water-samples were taken by Amundsen in green 
selters-bottles with patent india-rubber stoppers, which close perfectly 
tightly. The bottles were old and had been washed for days in hot water. 
They would hold about 600 cubic-centimetres of water. The samples were 
examined by Mr. Jakob Schetelig with the Hydrometer of Total Im- 
mersion and by Mr. I. Leivestad by titration. I give below the results 
as computed from Martin Knudsens Tables. 
| Depth | Schetelig by Leivestad by Difference 
Stations Date and | aca | Hydrom. Tot. Imm. Titration. | m 
LE ox metres. | | | | PASSES 
| 99 | So | Cl 00 | S ao | 
6a May 9, 1901 I | 27°63 | 34°38 1904 34°40 + o'04 
| 69° 32’ N. | el "65 "42 045 "41 or 
ASK SJ. | 10 ‘04 "40 
| 200 63 '98 04 "40 + ‘o2 
30 62 "37 045 ‘41 AWS 
40 62 37 055 "42 1-05 
| + 0'026 
= | = I liga x = |e 2 
22a July 11, 1901 1 26072 033526 18'39 33'22 — 0'04 
74° 26° N. 5 TÅ '31 ‘44 Sag ‘00 
6° 24! W. | er eg | '64 '62 '64 ‘00 
Ine ge | rade eased ‘90 34°14 ‘00 
30 | | 5a I0'IO 'SI "00 
40 ‘OI | 73 | ‘22 ‘72 —_ ox 
| | | — 0'008 
We see that the values obtained by the two methods of determina- 
tion of the samples from the sea east of Greenland in 74° 26° N. Lat. agree 
much better than those of the samples from the Barents Sea. Provided 
that the titrations have given fairly accurate results, this seems to indicate 
that in the water from the Barents Sea there has been a comparatively 
great amount of chlorine, giving a salinity which is on the average about 
0'03 °/oo too high; whilst in the sea east of Greenland the permillage of 
Chlorine has been about normal, perhaps slightly too small. The explana- 
tion may be, that on. July 11, 1901, ice, exposed to low temperatures 
during the winter, had been melting at the surface in the region where 
