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CHAPTER XIIL 



THE AUBOEETUM. 



Definition. — Recent Introduction. — General idea of Arrangement, 

 Sect. I. Scientific treatment of tlie Arboretum. — Introductory 

 Remarks. — Dr. Lindley's Classification of tlie Natural Orders, 

 — Explanations. — Synopsis of Orders and Genera. — Applica- 

 tion of Principles.: — Transference of the System to the Ground. 

 Sect. II. Decorative Treatment of the Arboretum. — Object in 

 view. — Employment of larger Trees. — Lawns. — Surfaces 

 planted. — Evergreens. — Arboretums attached to Private Resi- 

 dences. — Sites in Pleasure-Grounds. 



An Arboretum, as now planted, may be defined to be a 

 collection of hardy trees and shrubs, arranged according 

 to their natural affinities. The diflPerent species and va- 

 rieties are placed together under the genera, orders, and 

 natural groups to which they belong ; and by this means 

 their resemblances and differences are more easily recog- 

 nized and distinguished — from their being brought into 

 proximity — than they would be in any promiscuous dis- 

 tribution. The affinities to which we have alluded are 

 best preserved when the arrangement adopted is that of 

 some one of the botanical systems constructed on the 

 principle of Natural Orders ; and fortunately these too 



