MAKING AiJUAEIA. 



21 



high, as the window — or only half as high — but its breadth 

 should somewhat exceed that of the window. The reason for 

 this greater breadth is that the tank may be so long that its 



Fig. 29. Back op Aquarium and Fernery combined. 



ends will not be exposed to view, the aquarium thus ap- 

 pearing to be larger than it really is. If the tank is made 



