no 



HYDROGRAPHY. 



that the last of these statements is not due to observational errors can best be seen thereby, that the 

 corresponding minima apply to station 78 as well as to station 80. 



In stations 83, 82, 81 and 75 which are lying in a row perpendicular on the ridge, we have 

 the following temperatures and salinities at the bottom. 



The bottom water accordingly is also here warmer and Salter south than north of the ridge. 



Still it is not likely to be supposed that this ridge, nor the Faroe & Iceland ridge, should 

 form such a complete boundary between the Atlantic-water and the basin-water that it could not be 

 passed. That water at any rate is coming over the ridge from the southward, and 

 even in considerable quantities, appears from the fact of the temperature at the 

 bottom, just north of the ridge, being considerably higher than to the northward 

 and westward in the basin. 



SECTION VIII. 



Northerly and southerly direction in Denmark-Strait. 



In the middle part of this section, the main body of the water has less salinity than 35-25. 

 It is thus here (in station 9 and 89) that the basin water comes nearest to the coast of Iceland, or the 

 Irminger Current has in its northennost part at this place the smallest breadth. Furthermore it is worth 

 notice to see how the basin-water at a depth of 200 fathoms (377 metres) is making its way like a 

 wedge into the Atlantic-water. 



SECTION IX. 



West of section VIII in a northerly and southerly direction in the Denmark Strait. 



While a great part of the water in section VIII, if looked upon in its entirety, had a salinity 

 that exceeded 35-25, this can only be said to be the case with a very small part of the water in sec- 

 tion IX, and the places where so high a salinity is found, are either lying in the most northerly or 

 southerly part, which likevise applies to Section VIII. 



The salinity in the lowermost stratum is low, less than 35-00. The expedition has almost 

 nowhere found so low a salinity in the Atlantic south of the ridge extending from the sotithwest point 

 of Iceland, or south of Iceland and the Iceland-Faroe ridge, and this circumstance seems to imply that 

 the basin-water in the Denmark Strait is specially characterised by a reciprocity of action 

 between the water of the two currents: the Irminger Current and the East Greenland Polat -current. 



It appears from the two sections VIII and IX, that in the same manner as a submarine ridge 

 extends from Reykjances , another submarine ridge extends in a westerly direction from the peninsula 

 on which the Snefjeldsjokcl \% lying, so that the highest points of the ridge are found between station 9 



