jjo C. A. SCHENCK. 



Recent experiments by Dr. Vater (Tharandt) demonstrate the in- 

 fluence upon the growth of the trees, as exercised by a lack 

 or an abundance of nitrates, phosphates, potash, and magnesia 

 in the soil. The fact that the trees grow faster on good soil 

 than on poor soil is readily understood. Rapidity of growth is, 

 however, by no means an indication of quality of growth. In 

 the long run, that soil alone can be claimed for forest pro- 

 duction, on which such production pays a better dividend than 

 the production of farm produce (including under this term cattle, 

 sheep, and horses). 



Every acre of soil should be devoted to the production under 

 which it assumes the maximum of value. It is the poor soil 

 rather than the rich, the rocky soil rather than the smooth, the 

 steep slope rather than the gentle, the swampy land and the 

 inundation district rather than the upland, on which tree pro- 

 duction is apt to be found most remunerative. 



