142 



OUR FORESTS 



cities have long known, that trees are of great value to a city. 



Many cities are spending money not only for trees, but for 

 proper means of protection. Thousands of 

 city trees are annually killed by horses, 

 which " crib " upon them. This may be 

 prevented by proper protection of the 

 trunk. 



Washington spent more than $37,000 

 for shade trees last year; Newark, N.J., 

 $27,000; Springfield, Mass., $21,500; and 

 St. Louis, $14,000. Chicago has appointed 

 a city forester, who has given the following 

 excellent reasons why trees should be 

 planted in the city : 



(1) Trees are beautiful in form and color, 

 inspiring a constant appreciation of nature. 



(2) Trees enhance the beauty of architecture. 



(3) Trees create sentiment, love of country, 

 state, city, and home. 



(4) Trees have an educational influence upon 

 citizens of all ages, especially children. 



(5) Trees encourage outdoor life. 



(6) Trees purify the air. 



(7) Trees cool the air in summer and radiate 

 warmth in winter. 



(8) Trees improve climate and conserve soil and moisture 



(9) Trees furnish resting places and shelter for birds. 



(10) Trees increase the value of real estate. 



(11) Trees protect the pavement from the heat of the sun. 



(12) Trees counteract adverse conditions of city life. 



Let us all try to make Arbor Day what it should be, a day for 

 caring for and planting trees, for thus we may preserve this most 

 important heritage of our nation. 



REFERENCE BOOKS 

 ELEMENTARY 



Sharpe, A Laboratory Manual for the Solution of Problems in Biology, American 



Book Company. 



Goff and Mayne, First Principles of Agriculture. American Book Company. 

 Murrill, Shade Trees, Bui. 205, Cornell University Agricultural Experiment Station. 

 Pinchot, A Primer of Forestry, Division of Forestry, U.S. Department of Agriculture. 



We must protect our city 

 trees. A tree badly 

 wounded by " cribbing " 

 of horses. 



