MAKING AQtTAEIA. 



23 



a sloping surface of motild (as shown by the dotted line) may 

 be substituted. 

 All the aquaria described in this chapter, with one ex- 



# 



n: 



,0 



Fig. 30 Section of Aquaeium and Fernery combined. 



ception, I have myself made at different times, and the one 

 excepted was made by a friend ; therefore it wiU be seen that 



