68 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



to study the tanks and specimens for themselves with 

 intelligent interest, to recognise representatives of the 

 leading groups of marine animals, and to make some 

 acquaintance with the nature and range, the beauty and 

 the importance of the living things of our seas. 



The majority of the figures are original, and were 

 drawn by Mr. Chadwick from specimens found at Port 

 Erin ; the rest were copied more or less closely from well- 

 known works of the following authors : — Claus, Grosse, 

 Savile Kent, Jeffrey Bell, Hickson, Mcintosh, Watson, 

 Balfour, Brady, Herdman, Sars, Korscheldt and Heider, 

 Jeffreys, Day, and Alder and Hancock. 



Soon after this guide is printed, it is hoped that the 

 old Biological Station will be vacated, and that the Liver- 

 pool Marine Biology Committee will move into the more 

 commodious new Laboratory and Aquarium now being 

 erected in conjunction with the Government Fish 

 Hatchery on the South side of the bay. The conditions 

 and requirements of that new institution have been kept 

 in view in choosing the groups and types to be described 

 and illustrated in the pages that, follow. 



W. A. Herdman. 



University College, Liverpool, 

 November, 1901. 



