COMMITTEE A — FEBR.-MARCH 1906 (8) 
ready with the investigation on the cod (Gadus morrhua). It appeared from this 
investigation three forms of cod occurred in the Polar Sea: 
1° the ordinary cod which also occurs on the Norwegian coast; 
9° a special form which might be considered peculiar to the Murman coast 
(a kind of ‘“taretorsk”) ; 
3° a smaller form occurring in a more northerly region. This region is 
separated from the region where the Norwegian cod is found by a zone where no 
cod occur at all. 
Various other details of his investigations were given and it was mentioned 
that the otolith-method was being used. 
Under Head 2 (Apparatus to be used) the convener Dr. Hrorr reminded 
the meeting of the agreement made in Copenhagen (July 1905), viz. that vertical 
fishing with Hensew’s egg net was considered indispensable and that the German 
Commission was requested to procure the apparatus. For the younger larval 
stages he, would specially recommend the following nets: Prrersen’s net, HEInckE’s 
young-fish trawl, similar horizontal nets, trawls and Nansen’s net. 
Prof. Hrincxe emphasized the great importance of the quantitative net; as 
the eggs are in different water-layers according to the stage of development, a 
true description of the distribution of the eggs would in his opinion be impos- 
sible unless the quantitative net were used. Apart from the quantitative nets he 
would propose the following nets as practical: 1. Hsorr’s young-fish nets of various 
sizes; 2. Perersen’s net with vertical pole; and 3. young-fish nets with 3 otter boards. 
Finally he gave a report on his observations with regard to the occurrence 
of young gadoids (especially whiting and haddock) under the shelter of medusae. 
He had only been able many times to see the young of these fishes when he 
sought for them under the jelly-fishes. 
During the discussion of the methods of investigation, the convener Dr. Hort 
reported on the investigations for determining the age of fishes as carried out under his 
direction. It appeared from these that the scales in the cod were specially suited 
for this work — whether this would also be the case for the other gadoids could not 
as yet be said with certainty. Material had been sent to him from six places on the 
west coast and one on the east coast of Norway for the study of the scales; 
though a very great material had undoubtedly been obtained in this way, he did 
not believe he would succeed in thus getting a sufficient material of all the stages 
of all gadoids for the investigation of the rate of growth ete. He would therefore 
