1906. No.3. AMUNDSEN’S OCEANOGRAPHIC OBSERVATIONS IN 1901. 71 
table, where Stat 18 of the "Michael Sars”, and Stat. 125 of the Ingolf 
Expedition, one on each side of Ryders Station, are given for comparison. 
The salinities are computed by means of Knudsen’s Tables. (For Ryder's 
salinities have been used the determinations with hydrometer, and at 
PÅ = 
IS" C, 
Ryders Station was taken 
some depths the mean between these values and the values of S 
found by Rørdam with the pycnometer). 
several miles inside the edge of the drifting ice-masses. While the upper 
temperature minimum is at the usual depth of about 50 metres at the 
“Ingolf’s” Stat. 125, and at the “Michael Sars’s” Stat. 18, there is a 
remarkable minimum of —2:1° C. in about 180 metres at Ryder’s Sta- 
o 
tion. The temperature of —2:1° C. is, however, evidently erronous, as 
it is below the freezing-point of the water (which is about —ı'9° C. if 
Depth Ingolf 125 Ryder II M. Sars 18 Ryder III M. Sars 19 | Ingolf 117 
: July 29, 1896 June 22, 1891 Aug. 6, 1900 June 25, 1807 Aug. I» 1900 July 23 18906 
Me 68 8 N. 68” 24 N. 69” 9'N. 69° SE N. 70° 35 N. 69° 13 N. 
16 2° W. 15.4, W: 12° o' W. rer VUE IT 10 W. 8° 23 W. 
a ar“ tå = ra QU oi 57 € —o2 C. KE at .G 
332 "oo 33-5 loo 342 “Joo a 3382 /.. 
LA == o° C. SSC 5" 6 43 ( 
337 oo 3427 /oo 3427 lo 
| ea €: | St —14" € = 1.67 C aan €: 0 7 c 
| 34-5 Fe, | 346 foo 338°) > 34°6 Æ 34°72 oo 
0'2? C. —rg? C — ro’ € en: sr — —o'o® C. 
200 EV at ER 347 Yao 3404 | 7 | Be 
188 087 €: VET = 2 06 C Fu oz C. —o'7° C 
| 1345 Vol ?| 349 loo? 349 oo 34°89 oo 34°99 /oo 
ie | —18° C LE = ps € 02 E 
34 94 /00 34 54 100 34°93 "oo 
Fe Te C | FT Les og C ao € oo” C 
34 94 lo | 3495 5 349 Io 34 93 co 34°06 “foo 
279 oa GN] 04? ce? —0'7° C. —0"4 C. 
34°93 oo 34°93 Joo 
m| 28S | re er © mr 
3499 Ion | 349 leo 3593 /? 
ER —0"4° €. —0'9? C. —08* C — 5 —oo C 
3490 / | 34°93 “Joo 3505 /oo 
7 BE —#9 C 69 CC — eee ae 
er 34°90 "log 349 “loo 34°92 °/oo 34-9 oa EE 
the salinity be 349 Yo). This may indicate that Ryder's temperatures 
are on the whole somewhat too low (about 002° C.). If it be assumed 
that the temperature has been near the freezing-point and that the 
salinity of about 3400 %0 be correct, the density of the water was 
about 28-12. This is rather heavy water; and the salinity may probably 
have been lower (the determination with the hydrometer gave 34°88 %oo). 
