SEA-FISHERIES LABORATORY 



259 



Methods and Equipment. 



The methods of work were practically the same as in 

 the previous two years. It may be useful to repeat here 

 the same little map that was used last year in order to 

 show the localities at which the gatherings were taken. 

 The nets used throughout the three years have been: — 

 Two closing vertical nets, the Nansen and the Petersen- 





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]? IG# 2. — The Offshore Plankton Stations. 



Hensen, a weighted and two surface, open, horizontal 

 tow-nets, all made of No. 20 bolting silk ; and, in addition, 

 some coarser silk tow-nets (Nos. o, 6 and 9 silk) and the 

 larger-meshed shear-net and Yngel trawl. 



In the equipment for the present year, while keeping 

 the older nets for the sake of continuity and comparison, 

 some new ones were added, viz., a large Nansen, 100 cm. 

 in diameter of No. 3 silk ; and a series of " funnel " nets 

 (fig. 3) which will be referred to again below, one of them 



