559 



samples and partly published them 1 . Bul being anxious to ascer- 

 lain the complete results of his investigations, I applied to him on 

 the subject. The lists are preserved in the Museum in Goteborg, 

 and through the kindness of Professor Cleve and the Board of 

 Directors of the Museum, I was allowed to take a copy of lliem. 

 I now take this opportunity of expressing my warm thanks to 

 Prof. Cleve and to the Board of Directors of the Museum in Gote- 

 borg for their kindness and courtesy. — The samples in question 

 are 30 in number. 



3. In the autumn of 1901 mv friend, Or. Knud Poulsen, 

 went lo the Færoes and setlled down in Thorshavn as a physician. 

 I begged him to make gatherings at intervals of from 2 to 4 weeks 

 as a continuation of the series of gatherings made at the request 

 of Prof. Cleve, and my friend has steadily kept doing so until 

 Octoher 1902, so that 23 samples have been gathered and examined, 

 and my warm thanks are due to him for these gatherings. 



4. A few samples (5) were gathered by mvself and Mr. Hel gi 

 Jonsson in 1897, in July, August, November and December re- 

 spectively. — 



On comparing the material from all these gatherings it must 

 be borne in mind that it is necessary to distinguish between the 

 gatherings (the greater number belonging to 1) which have been 

 gathered at a considerable distance from the islands, N. W. and S. 

 and S. E. of them, from those (the main part belonging to 2, 3 

 and 4, and a few belonging to 1) which have been gathered near 

 the coast, where coastal conditions (ampler nourishment and lesser 

 salinity) make themselves felt. But on the other hånd, the single 

 habitats within this restricted area have naturally enough no great 

 value with regard to such freefloating organisms as those with 

 which we are dealing, and therefore in the following list only the 

 frequency of the organisms, the season of the year in which they 

 occurred, and a few facts ahout their relation lo temperature and 

 salinity have been recorded, as also how far they mav be regarded 

 as oceanic or as neritie forms. 



The terms oceanic and neritie plankton are introduced by 

 E. Hæckel 2 , and he defines them (1. c. p. 22) as respectively the 



1 P. T. Cleve: The Seasonal Distribution of Atlantic Plankton Organisms. 

 Goteborg 1900. 



- Ernst Hæckel: Plankton Studien. Vergleichende Untersnchungen uber die 

 Bedeutung und Zusammensetzung der pelagischen Fauna und Flora. Jena (Gustav 

 Fiseher). 1890. 



