BULLETIN No. 18. 7 



first ye^r was 8 in. average 5 in.; maximum growth the second 

 year 13 in., average 7 in. 



Canoe Birch, (JBetula papyracea). Is making a nice tree and 

 to all appearances is a valuable addition to our list of ornamental 

 trees ; the maximum growth each of the two years tried has been I 

 ft. 2 in. and the average growth 10 in. 



Tree of Heaven, (Ailanthus glandulosa}. This was grown 

 from the seeds and has made a good growth and stood the winters 

 without injury except at the ends of the branches. The first 

 vear after transplanting the maximum growth was i ft. 6 in. and 

 the average i ft. 3 in. 



Burr Oak, ( ^uercus mac' ocarpa). Like all trees with a long 

 tap root, unless specially treated for transplanting, it is hard to get 

 started after transplanting. Last year it made a growth of 6 in. 

 and this year of 8 in. 



Swamp White Oak, ( Quercus bjcolor). Six trees of this were 

 planted but only one, and that was planted on the side of an irri- 

 gating ditch, is now alive, has made an average growth each year 

 of about 4 in.; oaks do best when raised from the acorn and not 

 transplanted. 



English Oak, {Quercus Robur*}. One specimen of this 

 is growing on the grounds and has not yet been injured by.ihe 

 cold, average growth about 4 in. *V- 



White Pine {Pinus strobus). One of the finest of the ever- 

 greens where it will grow ; the one winter it has stood here was 

 very hard on it, the leaves all turned brown and fell off; a new 

 growth has put forth but the trees have rather a sickly appearance. 



Scotch Pine, {Pinus Sylvestris}. Several specimens of this 

 have stood the winters without injury, but it can not be compared 

 with the white pine as it was entirely covered with snow, and there- 

 fore protected from the severity of the climate. 



Spruce, {Picea pungens). A very desirable tree for ornamen- 

 tal purposes, running into all shades of color, from silver to dark 

 green; five trees on the grounds have shown as many variations in 

 color. Tree perfectly hardy so far, but the growth has been slow; 

 the first two years only a growth of a few inches was made; the 

 growth this year has been about 8 inches. 



