, 2 THE DEPOSITS OF THE SEA-BOTTOM. 



pieces of the same gray clay-slate; further some grains of quartz, a single grain of feldspar; 

 a piece of loose sandstone; a larger piece of white-gray limestone, the only one in all the 

 specimens. Of volcanic material was found a piece of brown-gray tufa(?). 



Station 106. East of Iceland; Transition clay; o-oo per ct 3 very small grains, of which two were 

 of black, porous basalt, the third one a grain of quartz. 



Station no. Northeast of Iceland; Transition clay; 0.02 per ct. Very small grains, as far as they 

 could be recognized, exclusively black, compact basalt. 



Station in. Northeast of Iceland; Globigerina clay; 001 per ct, exclusively black, compact basalt. 



Station 112 Northeast of Iceland, south of Jan Mayen; Globigerina clay; 0.02 per ct; one single piece 

 of black, compact basalt. Besides the weighed part of the specimen were found two larger 

 stones, weighing together about 7 grs. They were black, fine-grained basalt, and yellow- 

 gray, very fine pumice. 



Station 113. South of Jan Mayen; Globigerina clay; 0-02 per ct. Black, fine-grained basalt, and 

 greenish olivine. 



Station 115. Immediately at the south coast of Jan Mayen; deposit of more shallow water, clay; 

 5'55 P er ct Almost exclusively basalt of a peculiar type; apparently it was fine-grained, 

 but under the microscope it was seen to consist of a brown, glassy mass with very nume- 

 rous, small vesicles; sometimes these were more inconspicuous, sometimes small grains were 

 found, in some instances in so great numbers that the glass almost disappeared. Further 

 were found larger quantities of olivine and augite; a very small quantity of red basalt and 

 colourless glass. Of not volcanic material a very small quantity of quartz was found. 



Station 116. South of Jan Mayen; Transition clay; 4-14 per ct. Rather angular grains; a little more 

 than half of them volcanic, chiefly basalt of the same type as in the preceding specimen; 

 some olivine; further augite and plagioclase. Of not volcanic material far the greater part 

 was quartz; further feldspar, biotite, red garnet, sandstone. 



Station 117. Between Iceland and Jan Mayen, a little nearer to Jan Mayen; Globigerina clay; 0-02 

 per ct 10 very small grains, of which 7 were black, porous basalt; one black, compact 

 basalt; one olivine, and one quartz. 



Station 118. Between Iceland and Jan Mayen, a little nearer to Jan Mayen; Globigerina clay; 0-02 

 per ct 10 very small grains, of which 7 were black, porous basalt; one black, compact 

 basalt; one olivine, and one quartz. 



Station 119. Between Iceland and Jan Mayen, a little nearer to Iceland; Globigerina clay; 0.08 per ct 

 Of n pieces 8 were black, compact or somewhat porous basalt; two were brownish pumice, 

 one quartz. 



Station 120. Between Iceland and Jan Mayen, nearer to Iceland; Transition clay; 0-37 per ct. One 

 piece, much larger than the others, consisted of reddish basalt; the smaller grains were al- 

 most exclusively volcanic; black and red, compact basalt; olivine; colourless, vesicular glass; 

 black, vesicular glass; brown glass. Of not volcanic material only a few grains of quartz 

 were found. 



Station 124 North of Iceland; Gray deep-sea clay; 0-05 per ct. Very small grains, almost exclusively 



