The Forestry Act of Ontario provides that every tree whose “trunk” is on the “boundary” between adjoining lands is the “common property” of the owners of the adjoining lands...and...every person who injures or destroys a tree growing on the boundary between adjoining lands without the consent of the adjoining owner is guilty of an offence under the Act. In a recent Toronto case, Owner "A" wanted to cut down a tree which was at the boundary line but appeared to be entirely on