Show cause injury to trees gasoline and oil have been known to injure and cause the dealt of trees if such guch substances come in contact the bark particularly in ohp lie case of tits ohp roots a writer in the wasil ington star the oil apparently penetrates to the cambium region w which is ie ft sensitive and red actively ve ly growing tissue injuring I 1 it t he be yond repair it L Is not tiec necessary essary thai th there ere be toxic substances es in the life mis m ture lure other then than the ol oil and themselves |