CAMPBELL'S SOIL CULTURE MANUAL 



243 



light and make good trunks of twenty feet in length. This 

 wood is valuable, and trees thus planted are grown with 

 relative celerity. At Arbor Lodge I have between 100 and 

 200 walnuts thus treated, which were put into the gronud 

 in the autumn of 1865, and if you could see and measure 

 them, it would be a work of supererogation for me to make 

 further argument in favor of this system of planting. 



To grow either deciduous trees or any variety of conifers 

 on these plains with any degree of success, it is necessary 



A PRAIRIE PARK. 

 Portion of Arbor Lodge, showing result of tree planting in Nebraska. 



to plant them close together. All great forests, whence 

 have come the best timber that man has ever used for 

 building and cabinet woods, have been dense. The vast 

 pineries of the Northwest were so closely planted by nature 

 that it was impossible for a horseman to ride through many 



