“That the Duke of Gordon has a right of cruive-fishing on the river Spey; but that Sir James Grant and the other pursuers, superior heritors on the Spey, have right and title
“That the superior heritors are only to float from sun rising to sun setting; also that they are to pass the cruive-dyke seriatim , at the place pointed out to them by the Duke's fishers, who are always to make the said openings, so as to allow the floats to pass freely and conveniently.”