ct is to draw as near as
possible to the jack, the player's bowl passing outside of two other
bowls placed 5 ft. apart in a horizontal line 15 ft. from the jack,
without touching either of them. Three points are scored if the bowl
come to rest within 1 ft. of the jack, two points if within 2 ft., and
one point if within 3 ft. Circles of these radii are usually marked
around the jack for convenience sake. In _guarding_ (fig. 2), two
jacks are laid at the far end of the green 12 ft. apart in a vertical
line. A thread is then pinned down between them, and on each side of
this thread three others are pinned down parallel with it and 6 in.
apart from each other. A bowl that comes to rest on the central line,
or within 6 in. of it, counts three points, a bowl 12 in. away two
points, and a bowl 18 in. off one point. In _trailing_ (fig. 3), two
bowls are laid on the turf 3 ft. apart, and straight lines are chalked
from bowl to bowl across their back and front faces, and a jack is
then deposited equidistant from each bowl and immediately before the
front line. A semicircle is then drawn behind the bowls with a radius
of 9 ft. from the jack. Three points are given to the bowl that trails
the jack over both lines into the semicircle and goes over them
itself. If a bowl trail the jack over both lines, but only itself
cross the first; or if it pass both lines, but the jack cross only the
first, two points are awarded. A bowl passing between the jack and
either of the stationary bowls, and passing over the back line; or
touching the jack, yet not trailing it past the first line, but itself
crossing the back line; or trailing the jack over the front line
without crossing it itself, receives one point. In no case must the
stationary bowls be touched, or the semicircle crossed by the trailed
jack or played bowls. In _driving_ (fig. 4), two bowls are laid down 2
ft. apart, and then a jack is placed in front of them, 15 in. apart
from each, and occupying the position of the apex of an inverted
pyramid. The player who drives the jack into the ditch between the two
bowls scores three. If he moves the jack, but does not carry it
through to the ditch, he scores two. If he pass between the jack and
either bowl he scores one, although it is not easy to see what driving
he has done. The played bowl must itself run into the ditch without
touching either of the stationary bowls. I