KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 24. N:0 II. 151 



IX. 

 Summary of tlie preceding paper. 



I. 



Introduction. 



Enumeration of previous expeditions and investigations. 



F. L. Ekman 1869. 



The German expedition with the Pommerania 1871 and 1872. 



G. Ekman and A. Cronandek 1876. 



The Norwegian expedition with the Vöringen 1876 — 1878. 

 The Swedish expedition 1877. 

 G. Ekman 1878 and 1879 (winter). 

 The German expedition with the Drache 1882. 

 » » » » » » 1884. 



The tishing expeditions of Trybom 1888 and of Heincke with the Sophie 1889 are 

 mentioned in part VI, p. 119. 



Fimds, equipraent and organisation of the Swedish winter expedition in February 1890. 



The hydrographic conditions of the Skagerack and Kattegat being very changeable 

 we JLidged it advisable to adopt a method different from that of all previous expeditions. 

 Our investigations were conducted simultaneously by 12 scientists, divided in parties of 

 two or three on board tive steamers, which were equipped with the best modern instru- 

 ments for hj^drographic work, the inventions of F. L. Ekman and T. Arwidsson. 



List of members of the expedition. 



The examination and analysis of the samples collected by the expedition was under- 

 taken by the Chemical Department of the Stockholm Högskola and occupied a space of 

 more than a year. 



