22 



THE STUDENT'S AQUARIUM. 



distinct colors allow of very effective grouping. They must 

 be anchored in the same manner as directed for fresh-water. 

 The bell glass can be fitted with rock- work, gravel, &c, ex- 

 actly as the fresh-water one. As I have before stated, the only 

 difference between the fresh and salt-water aquarium, is the 

 matter of evaporation, and the action of the salt-water on 

 metal, and its penetration. The same principle governs both. 

 I think the palm for hardiness must be given to marine aquatic 

 life. I have succeeded in shipping and delivering specimens 

 from salt-water in good condition much further than I have 

 specimens from fresh water. In conclusion, while I make no 

 claim to literary ability, I am quite sure that if you wish to have 

 an Aquarium and will read the foregoing carefully you will be 

 enabled to carry one on successfully, and if you can do that 

 my object in writing this treatise will be attained. 



