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Date 1878. Time of the day. Lat. Long. * E. G. Depth in metres. Temperature t° C. Spec, gravit)’ j observed. Spec, gravity reduced to l° n °° n —5C or-—-L. + 4 +4 Percent of Cl. Salt in percent.
Aug. 19 8 p. m. 77° 36’ 103° 25’ O — o’. I I.0224 I O229 2.83
» 20 0 a. m. Cape Tcheljuskin O — o°.6 I.0225 I.O23O 2.84
4 a. m. O — 0°.2 I.O228 1-0233 2.88
8 a. m. O — 0°.2 I.0226 I.O231 2.86
noon O O I.O226 I.O23I 2.86
4 p. m. 77° 44’ 104° 7’ O — o°.4 I.O232 I.O237 2-93
8 p. m. 77’ 39’ >05’ 7’ O + o°.o I.0225 I.O23O 2.84
O — I°.4 I.0259 I.O264 1.87 V. 3.26
128 — I °.2 I.0274 I.O279 1.92 p. 3-45
The temperatures found at the deep-sounding, Aug. 2nd, 8
o’clock a. m., [=—l°.o C at 50 m. and —0°.9 C at 115 m.
below the surface] are very remarkable, especially if compared
with the results obtained 4 hours later at similar depths
[= — 2°.4 C at 50 m. and — 2°.o C at 122 m.]. It is indeed
very strange, that the temperature at the bottom should change
so much within so short a distance, although the chemical
and physical properties of the water, represented by its saltness
and spec, gravity, remains almost identically the same. It
has occurred to me, that this anomaly may be explained as
an error of annotation and that the real numbers ought to
be — 2°.o C (instead of — l°.o C) and —1°.9 C (instead of
— 0°.9 C) since this seems to be the normal temperature of
the Kara Sea so deep below the surface. We can see from
the following that the spec, weights I.0379—1.0282 (saltness
3.45 & 3.49 p. c.) has never been observed in the Siberian Sea
except in water of the temperature -—1°.4 C to — 2°.4 C. It
must be observed, however, that there is no ambiguousness
in the ciphers of the manuscript journal, which warrants my
supposition.
The Siberian Sea.
The whole distance from the Taimur peninsula to Long’s
strait was before the voyage of the Vega almost a mare
in-cognitum to hydrography. In want of reliable facts, from which
we might judge of the real condition of this sea, we are wont
to attach a great deal of hypothetical assumption to the subject.
Thus f. ex. the question, whether the Gulf-stream pene-
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