50. At the day and hour specified in his or their notice, the person or persons sending the first or the only notice may proceed to drive the said logs or timber, doing the same as promptly, efficiently and economically as possible; and the cost thereof, except as otherwise agreed, shall be borne by each owner of such logs or timber in proportion to the quantity thereof belonging to him.
R. S. 1964, c. 84, s. 50.