Hartigs Rules. 103 



(2) " Every district or stand which is to be replaced 

 by a thoroughly perfect stand by means of natural 

 regeneration, must be brought into such position 

 (density) that the soil may everywhere receive 

 sufficient seeding. 



(3) "Each compartment must be kept in such con- 

 dition (density) that it cannot, before the seeding 

 takes place, grow up to grass and weeds. 



(4) "With species whose seed loses its power of 

 germination through frost, as is the case with the 

 oak and beech, the compartments must be given 

 such a position (density) that the foliage which after 

 the fall of seed covers and protects the same cannot 

 be carried away by wind. 



(5) "All stands must be given such density that 

 the germinating plants in the same, as long as they 

 are still tender, find sufficient protection from their 

 mother trees against heat of the sun and against cold. 



(6) "So soon as the young stand resulting from 

 natural regeneration does not any longer require this 

 motherly protection, it must gradually, through the 

 careful removal of the mother trees, be accustomed 

 to the weather, and finally must be entirely brought 

 into the open position. 



(7) "All the young growths, whether secured by 

 natural or artificial seeding, must be freed from the 

 accompanying less useful species and from weeds, 

 if these in spite of all precaution threaten the better 

 kinds. 



(8) "From every young forest until it is full grown, 

 the suppressed wood must be removed from time to 

 time, so that the trees which are ahead or dominate 



