L the year 1894 M. E. NILSSON went in the whale-ship 
»Eclipse» from Dundee to search after the lost young and 
brave swedish arctic explorers M.M. BJöRLING and KALLSTENIUS. 
When crossing Baffins Bay and the northern part of Davis 
Strait, numerous samples of plankton were gathered. The 
collection, which had evidently been made with great care, 
comprised nearly 50 bottles, containing abundant materials 
for microscopical examination of the pelagice forms from these 
regions, hitherto scarcely known, and was the more valuable 
as it had extended from the beginning of May to the middle 
of October and was made at different stations. 
The animals as well as the cilioflagellates, in this collec- 
tion, have been examined by Dr AURIVILLIUS, and as he in- 
tends to give a complete account of the plankton of Baffins 
Bay I shall here confine myself to a short summary only of 
my own researches so far as they relate to the diatoms. 
In the month of May the gatherings were made at some 
distance from Disco. They consisted almost entirely of dia- 
toms, the most predominant forms being Coscinodiscus Oculus 
iridis, Fragilaria oceamica and F. Cylindrus, Podosira glacia- 
lis. Of Chetoceros some few specimens only Were found. 
In June one sample only was taken, the 23:de of the 
month, near Melville Bay, composed mainly of cilioflagellates 
(Ceratiwuum Tripos var.). 
A sample taken the 5:th of July near Cape Dudley was 
of the same character. A number of gatherings, taken in the 
vicinity of Bylot Island between the 21:th of July and the 
9:th of August consisted also mainly of Ceratium Tripos var., 
the diatoms being scarce and of the same species as in the 
sample taken in May. Two samples collected at 73” to 74” 
