l68 MObEEN FOREST ECOifOM'sr. 



Hartig not only showed that this was practicable, but he 

 pointed out what measures should be adopted with a view 

 to its being accomplished. 



The subsequent publication of a treatise by Cotta on 

 the fundamental principles of forest science, the first 

 edition of which appeared in 1804), carried still further the 

 improvement of forest economy. 



A second edition of this work appeared in 1820. Mean- 

 while the work had been welcomed and studied in France, 

 as in Germany : for science, like the love of God, and the 

 light of the sun, and the air of heaven, is free and common 

 to men of all lands, to all who can understand, and appre- 

 ciate, and use it. And by the time the second edition of 

 the work had appeared, France was prepared to take up 

 the work free from the destraction of wars in which she 

 had been involved by the Revolution and some of its eoa- 

 pequences. 



M, Lorenz, M. Parade, and oth-ers there, gave their best 

 attention to the work of improving the forest economy of 

 the day, nor did they do this withoat honourable acknow- 

 ledgment of what had been done by Gernuin students of 

 forest science. 



' We,' says M. Parade, speaking of his countrymen, 

 ' preceded our neighbours in the establishment of a regular 

 and well-ordered management of forests, and in this we 

 have served them as a model ; but in what lies in advance 

 of this they have returned with usury what from us they 

 received : more especially is this the case in the most 

 difficult and most important department of the work — the 

 management of timber forests.' 



By M. Jules Clavd, in an article entitled Etudes 61 Econo- 

 mie Forestiere, which appeared in the Bevue des Deux MondU 

 for January 1860, it is stated that 'Sylviculture, after hav- 

 ing had in France its brilliant epoch, remained stationary 

 during a quarter of a century, in consequence of the political 

 events then engrossing the attention of all, but all the 

 while it was advancing with giant strides amongst their 

 German neighbours. It had taken in Germany a firm 



