478 



STATE BOARD OF AGRICULTURE. 



The following table gives the growth of trees in a few windbreaks in 

 the State: 



JThis windbreak has been cut back occasionally. Ttie osage orange will sprout from the stump. 



EXrERHVEENTAL ULANITAITION AT GRATLINiG 



In 1888, Dr. W. J. Beal, at that time Professor of Botany at the Mich- 

 igan Agricultural College, made an experimental plantation of a large 

 number of diiferent species of trees on the lands of the College experi- 

 mental farm at Grayling in Eoscommon county. This plantation is now 

 32 years old and offers a valuable example of what may be expected in 

 the way of forest growth under such conditions. 



The soil is dry and sandy, typical of much of the jack pine plains of 

 the State. The native species common on such soil in this locality are 

 scarlet oak, jack and red pine. The experimental plantation originally 

 contained the following varieties of trees. The list gives the number of 

 trees of each species used and also the height of the seedlings at the time 

 of planting. 



100 Canoe birch, 10 in. 



50 Camperdown elm. 



20 Sycamore maple. 



20 Hackberry, 12 in. 

 100 Black ash, G in. 



50 Red elm, G in. 

 100 Red maple, 6 in. 

 100 Hardy catalpa, 18 in. 

 1000 Black locust, IG in. 

 200 Silver poplar cuttings. 

 100 Balsam poplar cuttings. 

 100 Wisconsin weeping willow 



cuttings. 

 100 Silver maple, 21 in. 

 100 American beech, 18 in. 

 100 American elm, 12 in. 

 200 Russian mulberry, G in. 

 200 Large white i)oplar cuttings. 

 100 Balm of Gilead cuttings. 

 100 White willow cuttings. 

 100 Purple willow cuttings. 



A few Lombardy poplar. 



100 Yellow willow cuttings. 



100 American arborvitae, G in. 



500 White pine, 10 in. 



100 Red cedar, 9-12 in. 



100 Sugar maple, G in. 



100 White ash, 1 ft. 



100 Honey locust, 12 in. 



50 Box JElder, 24 in. 

 100 Norway maple, 12 in. 



50 European elm. 



20 Kentucky coffee trees, G in. 

 lOO Black cherry, 12 in. 



50 Basswood, 4 in; 

 100 Scotch pine, 9-12 in. 

 100 Norway spruce, 9-12 in. 

 200 European larch, 9-12 in. 

 100 Green ash, 1 ft. 

 100 Yellow birch, 6 in. 



50 White spruce, 9-12 in. 

 200 Red pine, 4-6 in. 

 A few pitch pine. 



