east side of the sensitive element is over
weighted so that the pin presses against the
west jaw of the slot. In Fig. 197, this over
weighting is indicated by a mass A on the east
side of the sensitive element.
The spin-axle of a pendulous gyroscope
tends to become parallel to the earth's axis,
with the direction of spin in the same sense
as the direction of rotation of the earth (Art.
106). It follows that when the spin-axle is
in equilibrium, the sense of rotation of the