COUNCIL — APRIL 1912 — APPENDIX C — 52 — 



in the first half of June 1911 from ships at anchor in the North Sea, and on the 

 working up of the material thus collected in tables and graphical charts. 



Prof. Pettersson then thanked him on behalf of the meeting. 

 The sitting closed at 4.30 p. m. 



Second Sitting: Tuesday, 23rd April 1912, 10.25 a. m. 



Chairman: Docent Knudsen. 



Secretary: Dr. Gehrke. 



Also present: Ekman, van Everdingen, Gran, Green, Jacobsen, Jee, Lea, 



Pettersson, Schultze, Witting. 



Later: Brandt. 



Docent Knudsen opened a discussion as to the method in which the material 

 collected in the North Sea during the first half of June 1911 should be pub- 

 lished. After the question had been thoroughly discussed, it was recommended 

 that the whole of the hydrographical observations should be printed in extenso 

 as tables, and in such a manner, that the less exact observations should be distin- 

 guished from the reliable ones by foot-notes or other indications. As regards the 

 graphical charts it was submitted that all the tidal ellipses calculated should be 

 published, further two charts of the 10 Meter depth and the bottom, as well as 

 complete diagrams of current, temperature and salinity from the Danish station 

 "Horns Rev" and the Dutch station (in order to — inter alia — compare 

 the results obtained by use of two different sorts of instruments). The 

 meteorological data should be published in the form of weather charts or other- 

 wise, after consultation with Dr. Ekholm in Stockholm. The whole bimensual 

 material collected from the Lightship "Smiths Knoll" to be included in the tables. 

 The whole publication to form a part of the Hydrographical Bulletin. 



The redaction of a resolution to this effect (No. 1) was postponed. 



The program of future hydrographical investigations was then thoroughly 

 discussed. It was agreed, that an extended seasonal cruise should be undertaken 

 in May 1912 (Resolution No. 2), and the following information was given: — 



1. Finland: Investigations along the customary lines, paying special atten- 

 tion to chemical determinations of 2 , G0 2 , G0 2 -tension, concentration of H-ions, 

 and alkalinity. 



