70 A MANUAL OF FORESTRY. 



while the latter necessitates sowing on ridges. Where 

 free soil alternates with stony or rocky parts, the 

 former may be sown in strips, and the latter in patches 

 or holes, &c. 



B. Planting. 



Under the term planting in Sylviculture is understood 

 the method of forming a wood by means of plants which 

 have been raised elsewhere. The success of the opera- 

 tion depends, as in direct sowing, on many matters, 

 which hold good, more or less, for the different ways 

 in which the actual planting is carried out. The 

 business of raising the plants is in itself one of great 

 importance. Planting with slips, layers, &c., again, is 

 so different in many ways from the planting of seedlings, 

 that it had better be considered separately. Hence the 

 subject now under consideration may be divided into the 

 following four parts : 



I. General conditions of success. 

 II. Eaising plants. 



III. Methods of planting. 



IV. Planting with slips, layers, &c. 



I. CONDITIONS OF SUCCESS. 



This subject may be dealt with under .the following 

 headings : 



1. Choice of species. 



2. Different kinds of plants. 



3. Quality of plants. 



4. Age and size. ^ 



