30 IMPORTANT TIMBER TREES 



similar trees, the average number of a planted mature 

 forest, all to mature in seventy -five years and all to be 

 replanted when removed, the same as the others. The first 

 acre will yield one tree a year and the second two and two 

 thirds trees in that time. It will cost no more to care for 

 one than the other, and hence the profit must be in still 

 greater ratio than their yield. Besides this, the character 

 of the lumber grown in sparse or uneven stands and where 

 open spaces occur is always inferior in quality to that 

 grown where the trees are all tall and free from limbs. 



To be sure, growing trees in a nursery and transplanting 

 them into the forests cause a greater expenditure at first, 

 and that must be reckoned with; but calculation will 

 readily show that this increased cost, at compound interest, 

 is not proportionately as great as the increased value of 

 the product. Experience in countries growing artificial 

 forests has led to a wide adoption of this system of repro- 

 duction. Saxony is reputed to have one acre of forest nur- 

 sery to every one thousand acres of forest, and in that 

 kingdom will be found forests producing the greatest 

 revenue. Switzerland has seven hundred and eighty acres 

 of forest nurseries, and plants about twenty-two million 

 trees each year. 



The absolute control of the species of trees composing 

 the forest, the uniform and excellent quality of the lumber 

 produced, the largely increased yield, the even age and 

 size of the trees at maturity, together with the much greater 

 certainty of securing a full stand, are features which chal- 

 lenge serious consideration. 



