the conditions being that the measurement of rough timber for payment is to be regulated by the stops or joggles. Every piece to be measured for contents by calliper measurement, as far as the spire will hold 12 inches in diameter. No tops to be received, except the spire and such other top or limb as may be grown on the main piece, of a substance and length to admit of being converted with it. Such other top or limb will be measured for contents as far as it will hold
FIG. 16a.
FIG. 16b.
12 inches in diameter. If, however, the professional officers of the yards are of opinion that the conversion of the main piece will be improved thereby, tops, including the spire, will be measured for contents as far as they will hold 9 inches in diameter; but, in such case, two-thirds only of the contents below 12 inches in diameter will be added to the other contents of the piece for payment. All the rough timber to be so hewn or squared that no part of the surface or square
