Periodical Literature. 435 



In a thoughtful, not too technical article, 

 Brrors Ostwald shows up incongruities of the 



of methods of profit calculations advocated by 



Soil Rent the soil rent theorists. He shows especially 



Theory. that the claim that similarity in principle of 



the annual and intermittent sustained yield 

 management can be demonstrated on the basis of the soil rent is 

 based on the erroneous assumption that mathematical proofs 

 may at once be considered as proofs from the economic point of 

 view; that a difference in principle between soil management (as 

 in the intermittent management) is not justified in the nature of 

 forest economy ; that, on the other hand, similarity in principle 

 of intermittent and annual management can be readily demon- 

 strated on the basis of the forest rent; and that the Faustmann 

 formula must be abandoned, because only mathematically tenable 

 but not economically correct. The suggestive article is worth 

 pondering. 



Zur Theorie des aussetzenden und dcs jahrlichen Nachha-ltsbetriebes. 

 Centralblatt fiir das gesammte Forstwesen. June, 1913. Pp. 249-258. 



In spite of similar soil, climate and market 



Increasing conditions, the Province of Alsace-Lorraine 



A^et Yields has lagged behind the neighboring states of 



in Baden and Wiirttemberg in net yield from 



Alsace-Lorraine. the state forests. In 1910 these net yields 



were as follows : 



Alsace-Lorraine $2.90 per acre 



Baden 6.00 per acre. 



Wiirttemberg 6.65 per acre. 



Lack of a good road system, too large administrative units, 

 and a slightly higher scale of wages make exploitation more ex- 

 pensive in Alsace-Lorraine. The main reason for the low net 

 yield, however, is the poor condition of the forests at the time 

 Alsace-Lorraine became a part of the German Empire. From 

 1 669- 1 827 the stands of fir were handled on a rough selection 

 system, while the pine and hardwoods were cut clean, with the 

 exception of a few scattered trees left for seed or future develop- 

 ment. In the period from 1827-1870 the political disturbances 

 and wars induced reckless overcutting- As a consequence, the 



