I50 



ARBORICULTURE. 



tion of "those resources which we have 

 fondly regarded as inexhaustible." But 

 in this case the threatened exhaustion is 

 not due so much to waste as to increased 

 demand for the product. Two or three 

 generations ago it was believed that there 

 was enough iron ore within the confines 

 of the United States to supply the world 

 for all time to come, but at that time the 

 enormous increase in the uses of iron 

 could not be foreseen. Nobody had au 

 idea of the extent to which the railroads 

 alone would use steel, or of the part it 

 would play in the construction of modern 

 buildings. The development of electrical 

 science has created uses for copper which 

 have many times multiplied the demand 

 for that metal, and our modern indus- 

 trialism has changed coal from a luxury 

 to a vital necessity, a thousand tons of 

 which must be consumed now for every 

 one that .found its way to market fifty 

 years ago. 



The natural resources of this country 

 can not forever continue to be as rich as 

 they are now. Perhaps the next gener- 

 ation, realizing the necessity for the econ- 

 omy which ought to be practiced now, 

 will adopt the frugal habits of the French, 

 the Germans, the Japanese, and other peo- 

 ples, who are forced by conditions to live 

 on less than we waste, and who not only 

 do it, but get rich at it. But it is a great 

 pity that the lesson must be learned at so 

 dear a price. — Colorado Springs Gazette. 



SHADE TREES IN A GALE. 



On Saturday, June 9, while we were 

 in Washington, a severe windstorm, 

 with much rain, passed over the city. 

 Subsequent reports told how extensive 

 the storm had been throughout the 

 East. After the storm had subsided we 

 traversed several street car lines, and 



everywhere the streets, parks and private 

 grounds were strewn with large branches 

 broken from the trees, with numerous 

 trees uprooted. 



Probably no less than a thousand trees 

 within Washington were broken down or 

 badly mutilated from loss of larger 

 branches. 



It is quite important, as well as of in- 

 terest, to know what trees were injured, 

 and which escaped mutilation. 



The soft or silver maple, accr dasycar- 

 p II III, suffered by far the greatest loss, 

 while the Carolina poplar, or cotton- 

 wood, was also badly broken. 



Norway maple, sugar maple, all the 

 oaks. Oriental plane, or European syca- 

 more, honey locust, most of the coni- 

 ferous trees, and ginkgo, were among 

 those which were able to withstand the 

 beating and bending which the storm 

 caused for an hour or two. 



This experience is of value as warn- 

 ing planters of street and shade trees to 

 avoid such trees as silver maple and 

 Carolina poplar, the trunks and branches 

 of which are extremely brittle, and 

 break with even a moderate windstorm 

 or the accumulation of snow and ice in 

 winter. 



Here are two trees which are more 

 popular with the mass of tree planters 

 than all other shade trees of America. 

 Both have one fatal qualification, that 

 of rapid growth. Fatal, yes, because it 

 is the temptation which is irresistible to 

 most planters, and in choosing this one 

 quality, losing sight of permanency and 

 many more excellent qualifications, these 

 two inferior trees are planted to the ex- 

 clusion of all other trees. 



Both these trees are short lived, very 

 much diseased, attacked by innumerable 

 insects, while both are seriously dam- 

 aged by windstorms. Both require 



