pine. The eertinensis popular has not grown as well in the 

 high, poorer soil of the seedling plat as it has in the plantation. 

 Elm and the Norway popular ( a popular received under this 

 name from the nursery, but evidently one of the aspens, pro- 

 bably P tremuloidcs] have done well, and the laurel leaved wil- 

 low has gi own very well. Its glossy leaves make it a noticeable 

 object in the plat. It is visited by the cottonweod leaf beetle, which 

 does it less injury than either cottonwood or certinenis poplar. 



The birches do not thrive in this plat as they do in the lower, 

 richer soil of the plantation. 



The small plat of Scotch pines, in which 342 trees were set in 

 the spring of 1890, showed more than any other of the forest 

 plants the effects of the very dry autumn and open winter. In 

 the fall, as noted in Bulletin No. 20, 285 pines were in good con- 

 dition. Of these not more than twenty-five survived, and less 

 than a dozen are in good condition. 



The land in which they stood is a gravelly knoll, and they were 

 set there to test the adaptability of the species in the severest 

 way. Evidently the tree requires a moister soil than the gravel- 

 ly ridges furnish. 



Comparing this seedling plat, which is on and near the ridge 

 of a long northern slope, with the forest plantation, which is in 

 low land at the base of a similar eastern slope, we find the trees 

 in the lower land as a rule larger, and in better condition, hav- 

 ing been less injured by winter-killing. The soil in the planta- 

 tion is deep and contains little gravel. That in the seedling plat 

 is comparatively thin and is underlaid with a gravel stratum, 

 under which is the stiff clay, which also forms the sub- soil in 

 the plantation. 



It is of far greater importance, however, to cover the ridges 

 of prairies with trees than to grow them in the richer lowlands. 

 They are not only more effective as wind breaks when placed on 

 ridges protecting thus a far greater area but they are immeas- 

 urably more useful in saving snow water when planted in the 

 higher ground. And so, while observations thus far point to 

 greater success with trees grown in the rich low lands, the plat 

 in the higher ground demonstrates that, while growth is slower, 



