596 ON CONVENIENCES PECULIAR TO BOOK I> 



young may be soon allowed to run at pleasure through this in- 

 closure, as at Foxley, Ilulne Abbey, &c. 



The aviary may be placed near the mansion. A wire net- 

 ting should always inclose a large space (perhaps near a quarter 

 of an acre) containing water, lawn, trees, shrubs, plants, &c. 

 and connected with a glass-house. This glass-house may con- 

 tain the exotic birds and fishes: part of the others may be 

 placed in cages, and hung on different trees or bushes ; and the 

 rest may fly throughout at pleasure. The aviary of Rousseau, 

 as described in his Eloisa, deserves attention in many cases. 



The apiary naturally belongs to the flower-garden. The 

 well-known plan of glass hives, and Mr. Bonar's new improve- 

 ments in their general management, are interesting, and merit 

 attention. 



The pigeon-house, an ancient appendage to nobility and 

 grandeur, may often form an interesting object, and should al- 

 ways be of an elegant form, and kept clean and secure from 

 vermin, in order to ensure the abode and prosperity of the in- 

 habitants. 



Fish-ponds in inland countries can only be made of fresh 

 water : they are of several kinds ; as those for breeding, rearing, 



