SCRUPLE, in Chaldean chronology, is the th part of an hour, called by the Hebrews helakin. These scruples are
much used by the Jews, Arabs, and other eastern people, in computations of time.
SCRUPLES of half Duration, an arc of the moon's orbit, which the moon's centre describes from the beginning of an eclipse to its middle.
SCRUPLES of Immersion or Incidence, an arc of the moon's orbit, which her centre describes from the beginning of the eclipse to the time when its centre falls into the shadow.
SCRUPLES of Emersion, an arc of the moon's orbit, which her centre describes in the time from the first emersion of the moon's limb to the end of the eclipse.