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DAKOTA AGRICULTURAL COLLEGE 



TREES IN THE COLLEGE LAWN. 



In May the mulch was removed from the trees planted in the 

 lawn, and the ground about each tree was turned with a digging fork, 

 ;amd made fine, for a distance of five feet from the trunk. A heavy 

 mulch was then spread over the forked ground. This was the only 

 (Culture the tree received. The record of growth, with that of 1887 

 and 1888, is as follows : 



THE EVERGREENS. 



None of the conifers have been transplanted from the nursery, 

 except as referred to in the plantation. Five thousand small trees, 

 from four to eight inches high, were set under a well built shade last 

 spring; these have made very little growth, and the stand is not enough 

 better than that secured last year in open planting (see our Bulletin 

 No. 12) to warrant the expense of a shade. 



The Douglass fir and arbor vitse suffered in nursery from sun- 

 burned foliage ; Colorado blue spruce (Picea pungens) has grown fairly 

 well and has had fine foliage throughout the season. The Scotch pine 

 has made a fine growth and thus far leads all varieties. The trees have 

 stood in nursery rows and the ground is heavily mulched Daring the 

 growing season they were kept free from weeds. Following is a table 

 of the growth of the different varieties for the year : 



