54 



TRANSACTIONS LIVERPOOL I510LOG1CAL SOCIETY 



It has become evident to us, both from our own 

 experience in our former small Aquarium, and also from 

 the history of other similar but larger institutions else- 

 where, that much public interest can be excited and much 

 useful educational work accomplished by well-arranged 

 and adequately stocked and properly kept marine tanks, 



Fig. 23. Hydroid Zoophytes. 



1 Sertularella polyzonias. '2 Obelia genieulata, 

 3 Sertularia dbietina. 



especially if combined with scientific guidance and 

 persona] exposition. The latter, however, although very 

 desirable, is not absolutely necessary, and is not always 

 possible, as it sometimes makes too severe a strain upon 

 the limited time that the Curator can spare from his other 

 duties. It is hoped by the Committee that the " Guide 



