— 53 — 



Section, all hydrographie work has been done as a part of the programme of the 

 Atlantic Slope Committee. 



Denmark. 1) The collecting of water-samples and measuring of temperatures 

 has been continued on the routes: 



Kobenhavn — New York. 

 Esbjerg — Harwich. 

 K0benhavn — Island. 

 Kobenhavn — Grönland. 



2) Continued hydrographical observations in the Ringkobing Fjord in 

 connection with the biological investigations carried out in this area. 



3) Hydrographical investigations have been carried out in March 1922 from 

 the fishery-inspection steamer "Falken" in the Great Belt and the Beltsea. 



4) Determination of the contents of lime in various Danish lakes and streams. 



5) Continuation of the working up of the current-measurements from light- 

 ships and of hydrographical observations from a cruise with a power-boat in the 

 Sound in 1914. 



6) Collaboration with the Biological Department as to the influence of the 

 temperature upon the yield of the eel-fishery. 



7) Hydrographical researches on the "Dana"-expedition, September 1921 — ■ 

 July 1922. 



Finland. 1920. March. Res. 2. The surface observations of salinity and 

 temperature on the line Helsingfors — Hull have been continued. 



1920. March. Res. 12. Daily observations of ice and weekly charts of icecover 

 are made at 98 stations on the coast of Finland. 



1920. March. Res. 14. Preliminary studies of the evaporation are made in 

 July 1922. 



1920. March. Res. 15. Six new tidalgauges (Kemi, Toppila, Brahestad, Jakob- 

 stad, Wasa, Abo) are working, three are in construction. 



(See also Baltic Committee). 



France. Recherches quotidiennes depuis 1920 au bateau-phare de Sandettie 

 (Mer du Nord). • 



b. Plankton Programme. 



The following resolutions were passed at a meeting of the Plankton Section 

 held at Copenhagen on July 15th, 1921 at 3 p. m.: — 



1) That this Section recommends the adoption of the following standard methods 

 for vertical plankton hauls to replace the use of Nansen and Apstein nets as 

 formally recommended by the Council. 



2) That this Section desires that each country should make experiments with a 



