106 MASSACHUSETTS AGRICULTURE. 



inches to three feet annually for sixty years. A tree planted 

 near Paris grew eighty feet in height and nine feet in circum- 

 ference in thirty years. The whorl of limbs encircling the 

 trunk marks its annual growth. Says Mr. Emerson, in his Re- 

 port on Trees and Shrubs in Massachusetts, "In 1809 or '10, a 

 belt of pines and other trees was planted on two sides of the 

 Botanic Garden in Cambridge, to protect it from north-west 

 winds. When they had been growing thirty-one years, ten of 

 the white pines, measured by myself, exhibited an average of 

 twenty inches in diameter at the ground. The two largest 

 measured five feet seven inches in circumference at the ground. 

 One in Hingham, at the age of thirty-two, measured seven feet 

 in circumference at the ground and sixty-two feet six inches in 

 height — averaging annually nearly an inch in diameter and two 

 feet in height." 



We might, did space allow, give the results of oak planta- 

 tions and trees of other species, all tending to encourage 

 forest-planting. In closing, we give, as one more incentive to 

 tree culture, the results of the growth of the different species 

 of an English plantation of six acres for twenty years. The 

 soil was wet and swampy, resting upon a substratum of gravel. 



Lombardy Poplar, Populus dilatata, 



Abcle, Populus alba, 



Plane, Platanus occidentalis, 



Locust, Robinia acacia, 



Elm, Ulmus campestris, 



Chestnut, Castanea vesca, 



White Pine, Pinus slrobus, 



Spruce, Abies communis, 



Larch, Larix communis, 



Who of the members of the society will commence an ex- 

 periment in forest tree-planting, and thus render productive his 

 worn-out and unproductive lands? By so doing he will render 

 the " old homestead " more of a gem, and prove himself a prov- 

 ident husbandman. 



L. Wetherell, Chairman. 



