35 



1 de dybere Lag. under 600 Favne, toges sjælden 

 Temperaturrækkér, da Våndets Temperatur her kun vari- 

 erede fra 0° til — !.".">. 



Bimdskrabning. 



•At depths exceeding 600 fathoms we seldom took 

 serial temperatures, the temperature in the deeper strata 

 varying only from 0° to — l".f). 



Dredging. 



De Apparater, som 

 brugtes til at hente Dyr 

 op fra Havbunden, var 

 Skraber, Svabere og 

 Trawls. 



Skrale. — Dette Ap- 

 parat var gjort efter 

 engelsk Monster. Skra- 

 bemunden bestaar afen 

 smedet Jernramme, hvis 

 Længde er omtrent 7 

 Gange saa stor som 

 Bredden. Til denne 

 er tæstet en Pose eller 

 Sæk, og det hele dra- 

 ges langs Havbunden. 

 idet Mumien med sin 

 nederste lange Læbe 

 åfskraber det øverste 

 Lag af denne og der- 

 med de deri værende 

 Sødyr. 



Af Skraber for større 

 Dyb havde vi .'> Stør- 

 relser. Paa den stør- 

 ste. fremstillet i Fig. 

 1 7. varLæbernes Læng- 

 de 1™.25 (4 Fod), paa 

 den mellemste M .94 (3 

 Fod) og paa den mind- 

 ste U'".7S (2 1 /, Fod). 

 Paa alle 3 var Formen 

 af Skrabemunden den 

 samme. Med den op- 

 rindelige Form. som 

 Skraberne havde, da de 

 kom fra England, fandt 

 vi. at de tog for Lidet 

 af Bunden, og selv et- 

 ter lang Skrabning val- 

 der altid meget lidet 

 i dem. Medens Expe- 

 ditionen laaiThorshavn 

 i Begyndelsen af Juli 

 1876 os udbedrede den 



Fiff. 1" 



The apparatus em- 



ployed on the Expedi- 

 tion for bringing up 

 animals from the bot- 

 tom of the sea com- 

 prised the dredge, the 

 trawl, and swabs. 



The Dredge. — This 

 instrument was on an 

 English pattern. The 

 frame is of hammered 

 iron, the length at the 

 mouth being to the 

 width as 7 to 1. From 

 the frame is suspended 

 a hag. into which. on 

 the dredge being drag- 

 ged over the bottom. 

 the long nether lip of 

 the mouth vill scrape 

 in the substance of the 

 surface, along with the 

 marine animals it con- 

 tains. 



For greater depths. 

 we had dredges of 

 three different sizes. 

 In the largest (Fig. 17). 

 the length of the lips. 

 or scrapers. was 4 teet. 

 in that of medium size 

 3 feet. and in the smal- 

 lest 2 1 /, feet. The 

 shape of the mouth was 

 the same in all three. 



These instruments, 

 which had been made 

 in England for the Ex- 

 pedition, did not. we 

 found, as originally con- 

 structed, bring up a 

 fair sample of the bot- 

 tom; . the freight was 

 invariably small, even 

 after protracted dredg- 

 ing. We theretore. 

 when retitting at Thors- 



