310 sill HENRY STEUART'S METHOD 



and how art may be made to assist nature, in pro- 

 ducing such quahfications in subjects where they do 

 not already exist. 



The required properties will in general be found 

 in all trees that have grown singly, or in single rows, 

 and have thus been fully exposed to the effects of 

 the weather. This will more especially happen in 

 situations where the soil is light, and of consider- 

 able depth, as these circumstances are extremely fa- 

 vourable to the plentiful growth of roots and fibres. 

 Some of the most favourable places for finding sub- 

 jects with the properties specified in full perfection, 

 are old grass plots, avenues, woodlands near the 

 house or kitchen-garden or the like, where the grass 

 is usually kept under by the scythe. 



Trees growing in open exposures, however, have 

 not universally all the protecting properties natu- 

 rally. They may, for example, have good stems 

 and bark, but they may be found deficient iur 

 roots, in branches, or in both, from shallowness of 

 soil, or from mechanical injury sustained from other 

 trees. In this case, we must have recourse to art, in 

 order to assist nature in the production of the qua- 

 lities which are awanting. 



In order to supply deficiency in roots and bran- 

 ches, let about a cart-load and a half of peat-com- 



