TREATMENT OF WOUNDS 51 



localized, and he thinks the nature of the soil may 

 bear on the phenomenon. The discharges are 

 said to take place during thunder-storms, and to 

 be accompanied by dull reports. Only a part of 

 the tree is affected, as one side of the trunk and 

 the adjacent lower limbs. The limbs may not be 

 killed, even though split deeply. In a year or 

 two creases appear on the trunk, marking the 

 course of the discharge. " A very much larger 

 number of trees than people are aware of show 

 earth discharges." I have observed very similar 

 injuries as the result of twisting strains upon the 

 lower parts of limbs by the weight of snow and 

 ice. 



