28 DAKOTA AGRICULTURAL COLLEGE. 



now but ten inches high. This may seem like very slow progress, but 

 if the oaks be planted among other trees of more rapid growth, they 

 will in time be worth the waiting for. The burr oak ( Qxercus macro- 

 carpa) and red oak (Q. rubra) are both native in this county, but I 

 have not found the white oak ( Q. alba). It is probable that the native 

 species will succed better under cultivation, especially as the white 

 oak thrives best in a region of much greater rain fall than we have. 



THE WALNUTS. In growing from the seed, white walnut or butter- 

 nut seems to be more difficult to germinate than black walnut, though 

 I regard it as a more promising variety for Dakota growing, because 

 its native range is farther north. Both trees are valuable, the black 

 walnut timber being considered especially desirable for furniture mak- 

 ing. The walnuts have grown strong tap roots, the greater growth 

 thus far being below ground. I have seen healthy walnut trees six to 

 eight feet high near the village of Aurora, in this county, and I am in- 

 formed that the walnut is being successfully cultivated in Minnehaha 

 county. The better plan is to plant the nuts where the tree is to 

 stand, so as to avoid cutting the tap root. 



WHITE PINE. This -is a most valuable species, but our brief ex- 

 perience does not give much encouragement for its planting in Dakota. 

 Trees transplanted from our own nursery last spring, under most fav- 

 orable conditions and with great care, have made but little growth and 

 many of them have failed. None of the white pines in the lawn, 

 placed there three and four years ago, are making good growth. It 

 may be that in the plantation they will succeed; but thus far the in- 

 dications show the tree to be out" of its climate. 



SCOTCH PINE. This variety has grown far better than the white 

 pine, in the lawn, the nursery, and the plantation. Two years ago 

 seedling trees of white and Scotch pine, 4 to 8 inches high,, were set 

 in nursery and given the same treatment. Now the Scotch pine trees 

 are from two to four times as large as the white pines. The Scotch 

 pines that were transplanted last spring have made an excellent stand 

 and a fair growth and have been in fine condition throughout the year. 

 While this species does not equal the last in economic value, it is far 

 superior to it for windbreaks a use for which we must find some 

 evergreen trees. The Scotch pines in the lawn have grown well; 

 growth was somewhat checked by pruning lateral branches, and form- 

 ing new leaders on many trees in which the leading branches had been 

 injured. Thus far the Scotch pine seems well adapted to cultivation 

 here. 



OTHER VARIETIES. Notes on other species, both of evergreens 

 and deciduous trees, are witheld until their behavior under transplant- 

 ing can be 



- In "Officers of the Experiment Station," for "James M. 

 Aldrich, assistant librarian," read "assistant entomologist." 



