CULTIVATION OF WASTE LAND 39 T 



adays too heavy for cultivation ; but the problems they present are rather 

 those of engineering than of agricultural science. What I should like 

 in conclusion once more to emphasize is, that the reclamation of heath 

 and peat-land of which I have been speaking — reclamation that in the 

 past could only be imperfectly effected at a great and possibly unremu- 

 nerative expense of human labor — has now become feasible through the 

 applications of science — the knowledge of the functions of fertilizers, 

 the industrial developments which have given us basic slag and potash 

 salts, the knowledge of the fertility that can be gained by the growth of 

 leguminous plants. From beginning to end the process of reclamation 

 of moor and heath, as we see in progress in northwestern Europe, is 

 stamped as the product of science and investigation. 



