ADMINISTRATION-REPORT 1904—05 — X — 
L No. 
B, Other work B. 
of the Bureau 
a, Hydro- 
graphical 
No. 
No. 
18. J. W. Sanpström, Einfluss des Windes auf die Dichte und die Bewegung 
des Meereswassers. 6S. Oktober 1904. 
. 19. B. Hettann-Hansen, Zur Ozeanographie des Nordmeeres. Resumé eines am 
29, Juli gehaltenen Vortrags. 3 Fig. im Text. 8 S. Oktober 1904. 
.20. E. Ruppm, Ueber die Oxydierbarkeit des Meerwassers durch Kaliumper- 
manganat. 9 S. Oktober 1904. 
No. 15—20, Published together. 
.21. Cuarues J. J. Fox, On the Determination of the Atmospheric ‘Gases 
Dissolved in Sea-Water. (Communications du Laboratoire central a Chri- 
stiania No.1) 24p. 1pl. 4fig. in the text. March 1905. 
. 29. D. Damas, Notes biologiques sur les Copépodes de la mer Norvégienne. 
94 p. 1 carte. Avril 1905. 
.23. V. Watreip Exman, On the use of insulated Water-Bottles and Reversing 
Thermometers. (Communications du Laboratorie central a Christiania 
No, 2) 2 pl. 8 fig. in the text. April 1905. 
.24. V. Watrri Exman, Kurze Beschreibung eines Propell-Strommessers. 
(Communications du Laboratoire central a Christiania No.3) 45. IT. 
Juli 1905. : 
95. ©. Perrerssox, Beschreibung des Bifilar-Strommessers. 6 S. 1 T. Juli 
1905. 
96. A. M. van Rosenpaaz und C. H. Winn, Prüfung von Strommessern und 
Strommessungsversuche in der Nordsee 10 S. 2 T. Juli 1905. 
No. 24—26. Published together. 
A review over the remaining work of the Bureau is best ‚obtained by the 
separate consideration of the portions which are of a purely hydrographical 
nature and those which belong to the regions of biology and fisheries. 
a. The hydrographical work forms a separate division by itself under the 
direction of the first assistant of the Bureau, Docent Martin Knupsen. Con- 
cerning the work carried out by this division during the year July 1904—July 
1905, the following report has been submitted by Docent Martin KNUDSEN: 
‘The hydrographical data received were worked’ out and published in the 
Bulletin in the same manner as in the previous year. - 
Special attention has been directed to surface-observations, as it was found 
that the preparation of the surface-charts for the Bulletin had gradually become 
a very difficult task. The manner of representation did not permit all the 
