REGENERATION FROM ADJOINING WOODS. 247 



woods, as it affords excellent opportunities for securing a proper 

 mixture of the several species in the new crop. 



Above all, it is specially adapted for the introduction of a 

 more regular system of working into selection forests. 



d. Tlir SclerHon Si/sfem. 



Here the drawbacks of the group system are further mten- 

 sified, without offering sufficient compensation by way of 

 advantages in other respects. True, the soil is still more 

 completely protected, but this is generally accompanied by 

 withholding from the young growth a suital)le measure of 

 light. 



The system is, in Europe, confined to localities where the 

 uninterrupted maintenance of a crop of forest trees is neces- 

 sary for the protection of the soil against heavy rain, snow, 

 wind, etc., in fact for so-called protection forests in high or 

 steep mountains. It is also useful in forests of specially small 

 or large extent ; in the former, if the area is insufficient for a 

 regular division into compartments, and if nevertheless a 

 certain quantity of timber is required annually ; in very large 

 forests which are as yet in the first stage of systematic manage- 

 ment, such as many of the forests of India. It is also prac- 

 tised, generally in a rude form, where the demand for produce 

 is as yet much below the supply. 



B. Natural Regeneration from Adjoining Woods. 



After the area has been clear cut, the seeding is effected by 

 the seed falling from mother trees, which do not stand on the 

 cleared area, but alongside of it. 



The points which demand attention are the conditions of 

 success and the merits of the system. 



1. C()H(Utio)is of Success, 

 a. Sufficient Seedin(j of the Area. 

 The agencies which carry the seed on to the area are air 

 currents, and in some cases water, or the seed may roll by its 



