BULLETIN No. 156 OCTOBER, 1914 



MASSACHUSETTS 

 AGRICILTIRAL EXPERIMENT STATION 



ELECTRICAL INJLRIES 

 TO TREES 



By GEORGE E. STONE 



This bulletin deals with electrical injuries to trees, including 

 a brief discussion of the electrical resistance in trees, as well as 

 the effects of alternating and direct currents, lightning and earth 

 discharges. The methods of preventing injury to trees from 

 wires are also discussed. 



Requests for bulletins should be addressed to the 



Agricultural Experiment Station, 



Amherst, Mass. 



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