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gives a review over the cruises, made by these vessels up to September 1904, on 

 which the fisheries experiments : the measuring, marking and setting out of fish etc- 

 were made- The same cruises were often utilised for investigations on the 

 occurrence and distribution of the fish-eggs and larvae, the rate of growth and 

 geographical distribution of fishes, their conditions of food and reproduction. Re- 

 ports on certain results of these investigations have already been given in numerous 

 publications, which have appeared in the various countries. A list of these is 

 given in Appendix F of the Report of Administration for 1903—04. For the most 

 part, however, these investigations have not yet been completed; the results of 

 some of them have been sent in to the Bureau, and are published here as appen- 

 dixes of this General Report. (See Appendixes D, F, F, G and H.) 



A brief report on the present state of the investigations is given in the 

 introduction to Appendix A as also in that to the Appendixes D— K. These 

 introductions are not so much intended to show, just at present, the results 

 attained by the international investigations, but rather to explain the plan and 

 purpose of the investigations, partly also, the methods followed in working out 

 the various problems. The Appendixes which are published in the name and for 

 the responsibility of the authors, may be considered as so many "Capita selecta" 

 concerning varioris problems in details, chosen from the field of the general 

 investigations. No one will be surprised, that these treatises are not quite evenly 

 representative of every field of the study of the sea; in this first report on the 

 general work, indeed, only those papers on the investigations could be included, 

 which were known to contain definite even though preliminary conclusions. ' 



Copenhagen, October 1904 HeRWIG 



Pettersson 



HOEK 



■ The General Review has been tran.slaled from the German bv Dr. H. M. Kylu. 



