— 73 — COUNCIL-MARCH 1920-APPENDIX 



(III) Biochemistry. 



A special point, besides the constitution of tissues, is the estimation of organic 

 matter in solution. 



(IV) Experimental Biology, based on the foregoing. The investigation 

 of as many functions as possible in respect to their optimum conditions — from egg 

 to sexual adult. Special problems would be as follows: 



Fertihsation ■ — conditions (Oxygen, OH) necessary for maturation, activity 

 of sperm, entrance spermatozoa, etc. 



Development — conditions (OH, etc.) necessary tor segmentation. 



Growth — foodstuffs, metabolism, vitamines, etc. 



Distribution, General Vitality, etc. (Much information would in many pro- 

 blems be required from hydrography, statistics, etc.). 



Appendix IV to the Plaice Committee. 



II. Outline of the Investigations bearing on the Plaice Fisheries which the Three 



Fishery Departments of the United Kingdom undertake to carry 



out in the 12 months commencing April 1st, 1920. 



(I). Work undertaken by the Ministry of Agriculture and Fisheries. 

 (1) Skeleton Programme of Sea Work for Research Vessel. April 



1920— March 1921. 

 April. Trawling (probable remainder also of trawling at fixed Stations in 



March). 

 May. Otolith lines from Leman to Haaks; 



Transplantation from Dutch coast to S. W. Patch. 

 June. Marking at Haaks. Trawling at fixed stations, Haaks, Leman, 



Flamboro' off Sandettie). 



Invertebrate gear tested etc., on Leman ground. 

 July. Trawling. 



August. Marking on Leman Ground. 



September. Otolith lines as May. Fixed trawling stations. 

 October. (Remainder of trawling at fixed stations). Trawling probably. 

 November. Trawling. 

 December. Trawling at fixed stations. 



Egg cruise in S. Bight. 

 January. Egg cruises in S. Bight. 



Marking at Sandettie. 



Current work on spawning ground. 



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