NOTICE. 



The Committee desire to intimate that no copies of these 

 Memoirs will be presented or exchanged, as the prices 

 have been fixed so low that most of the copies will have 

 to be sold to meet the cost of production. 



The Memoirs may be obtained, post free at the nett prices 

 stated, from the Hon. Treasurer, Mr. I. C. Thompson, 53, 

 Croxteth Road, Liverpool ; Prof. Herdman, University 

 College, Liverpool; or the Curator, Biological Station, 

 Port Erin, Isle of Man. 



Memoir I. Ascidia — now ready, 60 pp. and five plates, 

 price 1/6. 

 ,, II. Cardium — in a few weeks, price 2/-. 

 ,, III. Echinus — at Christmas, price 1/-. 



