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24
Payne. Titl. Interval. 24"" Dift’.
M. S. M. S. S.
200 1632
300 17 27 10
400 18 32 3
500 19 40 j 9
000 20 57 2
700 22 16 3
800 23 38 l 4] 19
900 ’ 25 19 —5
1000 26 55 2
1100 28 33 f 1
1200 30 12 4
1300 31 55
Bund 32 44
Med det beregnede Interval lm 47s for Længden 1300
til 1400 Favne lindes for det observerede Interval af 49s
en Længde af 46 Favne, eller den udledede Dybde 1346
Favne. Ved den nøjere Eftermaaling fandtes 1343 Favne.
Paa 78" 2’ N, 6" 44’ E fandt den Svenske Expedition
med „Sofia" den 14de August 1868 en Dybde af 1350
Favne. „Sofias" paaværende Plads var omtrent 2
Kvartmil W for „Vöringens". og da Bunden fra Spitsbergen af
ber skraanede nedad mod Vest er Overensstemmelsen
mellem begge Expeditioners Lodninger efter al Sandsynlighed
endnu større, end de ovennævnte Tal udtrykker.
Lodlinens Ophaling. Efterat Loddet var kommet i ,
Bund. gaves de medsendte Dybthermometre Tid til at
antage det omgivende Vands Temperatur, og derpaa lagdes
Lodlinen om Tapperne paa Indhivningsmaskinen. Dens
Visning sees af de prikkede Linier i Fig. 14. Fra
Fodblokken gik Linen først til agterste Spiltap, derfra frem
og tilbage gjennem begge Tappers Furer og endelig paa
Rujlen. Opbalingen begyndte, og under denne rulledes
Lodlinen strax op paa Rullen, saaat den altid var klar til
næste Lodskud. Maalingen af Dybden under Opbalingen
er ovenfor beskrevet. Indbivningen gik jevnt, og Maskinen
bragte 100 Favne Line hjem i Løbet af 3 Minutter.
Naar Loddet nærmede ’sig Vandskorpen, skede
Indbivningen langsommere. Thermometerne toges af Linen,
under fornøden Stands i Indbivningen, eftersom de kom
over Rækken paa Loddebroen. og tilsidst toges Vandlienter
og Lod ind paa denne, hvor ile hexedes af. Vandhenteren
endevendtes og tømtes af Chemikeren. Bundprøven
undersøgtes først, som den laa i Lod-Roret og dens Art
noteredes i Loddejournalen. Derpaa toges den ud af Roret og
bragtes paa Flasker eller Glas, som forsynedes med
Stationens Nummer paa Etiketten. I 1876 brugtes
Selters-vand-Flasker med Korkeprop, i 1877 og 1878 cylindriske
Glas, ca. 10™ høje og brede, der lukkedes med Pergament-
Fatlioms. Time. Interval. ’2nd Dift’.
ril. s. m. s. s.
200 16 32
300 .17 27 " . 10
400 18 32 j 0 3
500 19 40 i 9
600 20 57 ’ 2
700 22 16 1 il 3
800 23 38 j "" 19
900 25 19 -5
1000 26 55 ; ’ 2
1100 28 33 II 1
1200 30 12 i 4a 4
1300 31 55 4
Bottom 32 44
The interval computed for 130U to 1400 fathoms
being lm. 47s.. the interval last observed. 49s.. will correspond
to a length of 46 fathoms, which, added to 1300, gives a
depth of 1346 fathoms. By actual measurement, as
described above, we got 1343 fathoms. The Swedish
Expedition with the "Sophia." sounding on the 14th of August,
1868. in lat, 78° 2’ K, long 6° 44’ E.. registered a depth
of 135U fathoms. The position of the "Sofia" was about
two miles to the Avest of that of the "Vöringen;" and as
the sea-bed shelves from the shores of Spitzbergen in a
westerly direction past this locality, the agreement shown
by the soundings of the two Expeditions is probably even
greater than expressed by the above figures.
Heaving in the Line. — The lead having reached the
bottom, sufficient time was allowed for the deep-sea
thermometers to assume the temperature of the
surrounding water, after which the sounding-line was passed round
the drums of the donkey-engine, as shown by the dotted
lines in Fig. 14. From the leading-block, the line was
first led to the after drum, then passed backwards and
forwards along the grooves of both drums, and finally on
to the reel. Thereupon the heaving in commenced, the
line, as it came up, being wound ou the reel, ready for the
next sounding. Our mode of determining the depth when
heaving in the lead has been already described. The line
was brought in at the uniform rate of 100 fathoms in 3
minutes.
On the lead nearing the surface of the water, the
speed of the donkey-engine was reduced. The needful
stoppages. too. were made to detach the thermometers as they
came over the rail of the sounding-bridge; and finally, the
water-bottle and the lead were taken in here and
unshackled. The water-bottle was immediately inverted and
emptied of its contents, whereas the sample of the bottom
was first inspected in situ, and its nature registered in the
sounding-journal, previous to being taken out of the tube,
from which it was transferred to bottles or jars labelled
with the number of the observing-station. On the first
cruise, in 1876. we used corked soda-water bottles, but in
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