REPORT OF THE COUNCIL. 417 



Twelve students attended a course of study in Marine Biology- 

 conducted at the Laboratory during the Easter vacation by Mr. G. H, 

 Grosvenor. 



General Work at the Plymouth Laboratory. 



A commencement has been made in extending the investigations on 

 the distribution of the fauna, which have been previously carried on in 

 the immediate neighbourhood of Plymouth, to the deeper waters of the 

 English Channel, and it is hoped during the coming year still further 

 to enlarge the area the fauna of which is being mapped out. Mr. L. R. 

 Crawshay is now associated with the Director in these researches. 



Great attention has been paid to perfecting the methods of rearing 

 marine organisms under laboratory conditions, and very promising pro- 

 gress has been made in this direction. A report upon the experiments 

 which have been carried out will, it is expected, be published during 

 the coming year. 



With the assistance of special donations given for the purpose by 

 Dr. G. H. Fowler and Mr. J. J. Lister, an investigation has been com- 

 menced into the food of the migratory fishes, especially the mackerel 

 and pilchard, frequenting the mouth of the English Channel, with a 

 view to ascertaining what relation exists between changes of the 

 temperature and density of the sea water or of the floating organisms 

 which it contains, and the fluctuations in the movements of these fishes 

 from season to season and from year to year. Mr. G. E. Bullen has 

 been engaged at somewliat irregular intervals in this work ; but although 

 promising progress has been made, the investigation is much hampered 

 owing to the fact that the funds available do not permit of his being 

 continuously employed upon it. 



Regular collections are being made of young fishes found in the 

 western part of the Channel, for which purpose a young-fish trawl on 

 the Danish pattern has been constructed, and has been found very 

 efficient. 



Mr. T. V. Hodgson has occupied a table in the Laboratory throughout 

 the year, for the purpose of working out material which he collected 

 on the British Antarctic Expedition. 



A collection of specimens illustrating the development and rate of 

 growth of fishes, and containing a collection of marine invertebrates, 

 has been sent to the Oceanographical Exhibition at Marseilles. 



The supply of marine animals and plants for museums and for 



