SUMMARY AND GENERAL REPORT. 



The papers in this Report deal with Fishery questions and 

 with the more purely scientific work of the Laboratory. 



Samples of trawled and drift net herring were examined in 

 the past year, but the report with regard to them is withheld 

 until we get an opportunity of examining more material this 

 season. 



Mr. Storrow has added to the account he gave of the Prawn 

 (Norway Lobster) Fishery of North Shields, tables dealing with 

 the months which, owing to the coal strike, were not included 

 in the report of last year. These will be found to satisfactorily 

 complete the description of this form in so far as it is possible to 

 do so from an examination of market material. 



Further experiments have been made on the migrations of 

 the crab. As in previous years it was found that a proportion of 

 the females — those which are to spawn in the next season — 

 migrate northwards. The females which remain in the district 

 of liberation are evidently females which will spawn in the follow- 

 ing year, the migration being similarly postponed for a year. 

 It is probable that both the ripening of the gonads and the 

 migration are in the case of the older females postponed for even 

 two years. 



The experiments in lobster culture were mainly directed to 



finding out the best means of obtaining a large quantity of 



healthy larva 3 , and the results pointed plainly to the value of 

 large tanks or ponds. 



The mussel culture experiments at Holy Island have also been 

 continued. A quantity of mussels was successfully transplanted 

 from Blyth and from the region of the Mill Burn at Holy Island 



