24 



Favne. 



Tid. 



Interval. 



M. S. 



2 d *" Diff. 



10 



3 

 9 

 2 

 3 

 19 

 — 5 

 2 

 1 

 4 



Med det beregnede Interval 1'" 47* for Længden 1300 

 til 14oo Favne tindes for det observerede Interval af 49* 

 en Længde a f 46 Favne, eller den udledede Dybde 1346 

 Favne. Ved den nøjere Effcermaaling fandtes 1343 Favne. 

 Paa 78" 2' N, 6° 44' E fandt den Svenske Expedition 

 med „Sofia" den 14de August 1868 en Dybde afl350 

 Favne. ..Sofias" paaværeude Plads var omtrent 2 Kvart- 

 mil W for ,.Voringens", og da Bunden fra Spitsbergen af 

 ber skraanede nedad mod Vest er Overensstemmelsen mel- 

 len] 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 an- 

 tage det omgivende Vands Temperatur, og derpaa lagdes 

 Lodlinen om Tapperne paa Indhivningsmaskinen. Dens 

 Visning sees af de prikkede Linier i Fig. 14. Fra Fod- 

 blokken gik Linen først til agterste Spiltap, derfra frem 

 og tilbage gjennem begge Tappers Furer og endelig paa 

 Rullen. Ophalingen begyndte, og under denne ralledes 

 Lodlinen strax op paa Rullen, saaat den altid var klar til 

 meste Lodskud. Maalingen af Dybden under Ophalingen 

 er ovenfor beskrevet. Indbivningen gik jevnt, og Maskinen 

 bragte 100 Favne Line hjem i Løbét af 3 Minutter. 



Naar Loddet nærmede "sig Vandskorpen. skede Ind- 

 hivningen langsommere. Tbermometerne toges af Linen, 

 under fornøden Stands i Indbivningen, eftersom de kom 

 over Rækken paa Loddebroen, og tilsidst toges Vandhenter 

 og Lod ind paa denne. hvor" de hexedes af. Vandbenteren 

 endevendtes og tomtes af Chemikeren. Bundprøven under- 

 søktes først, som den laa i Lod-Røret og dens Art notere- 

 des i Loddejournalen. Derpaa toges den ud af Røret og 

 bragtes paa Flasker eller Grlas, som forsynedes med Sta- 

 tionens Nummer paa Etiketten. 1 1876 brugtes Selters- 

 vand-Flasker med Korkeprop, i 1877 og 1878 cylindriske 

 Glas, ca. 10"" høje og brede, der lukkedes med Pergament- 



Interval. 



2nd Diff. 



111. 



10 

 3 

 9 

 2 

 3 



19 



—5 



2 



1 



4 



The interval computed for 1300 to 1400 fatboms be- 

 ing lm. 47s.. the interval last observed. 49s.. will correspond 

 to a length of 46 fatboms. which, added to 1300, gives a 

 depth of 1346 fatboms. By actual measurement. as de- 

 scribed above, we got 1343 fatlioms. The Swedish Expe- 

 dition with the "Sophia," sounding on the 14tb of August, 

 1868. in lat. 78" 2' N.j long 6" 44' E., registered a depth 

 of 1350 fatboms. Tbe position of the "Sofia" was about 

 two miles to tbe west of tbat of the "Voringen ;" and as 

 tbe sea-bed sbelves from the sbores of Spitzbergen in a 

 westerly direction past tbis locality. the agreement shown 

 by the soundings of the two Expeditions is probably even 

 greater than expressed by the above figures. 



Heaving in the IÅne. — The lead having reached the 

 bottom, sufficient time was allowed for the deep-sea ther- 

 mometers to assume the temperature of the surround- 

 ing 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 aloug the grooves of botli drums, and finally on 

 to the reel. Thereupon the heaving in commenced, the 

 line. as it came up. being wound on 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 fatboms in 3 

 minutes. 



< >n the lead nearing the surface of the water, tbe 

 speed of the donkey-engine was reduced. The needful stop- 

 pages, 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 tåken in here and un- 

 sbackled. The water-bottle was ininiediatelv invertcd and 

 emptied of its contentsj whereas the sample of the bottom 

 was first inspected in sit it. and its nature registered in the 

 sounding-journal. previous to being tåken out of the tube. 

 from which it was transferred to bottles or jars Iabelled 

 with the number of the observing-station. On the firsl 

 cruise, in L876, we used corked soda-water bottles, but in 



