306 PEESH-WATEE AQUAEIA 



23. All who keep aquaria should be on their guard against 

 giving the animals which they may contain any suffering, 

 but should, instead, learn to have the same consideration for 

 their feelings (whether they be sensitive or not) that a reason- 

 able and properly-disposed person is expected to have for 

 those of his fellow-creatures. 



24. The pleasure of keeping an aquarium is very much 

 enhanced if the person who owns it has some definite object 

 in view ; e.g., the thorough investigation of the hfe-history 

 of some particular plants or animals. There is very, very 

 much still to be learnt in this direction. 



The series of chapters which it has given me so much 

 pleasure to write, is now completed; and I venture to express 

 the hope that what I have said in them will be of such use 

 to novices in aquarium matters as to save them from some 

 failure and disappointment, and not a few aquatic animals 

 from imnecessary suffering. 



I here repeat, that a properly arranged aquarium which is 

 well cared for is always ornamental, interesting, instructive, 

 . and, in its best sense, elevating. 



