Scrupulus, or Scrupulum, the least of the weights used by the ancients, which amongst the Romans was the 24th part of an ounce, or the 3d part of a dram. The scruple is still a weight among us, containing the 3d part of a dram, or 20 grains. Among goldsmiths it is 24 grains.

in Chaldean Chronology, is 1/720 part of an hour, called by the Hebrews helakim. These scruples are much used by the Jews, Arabs, and other eastern people, in computations of time.

SCRUPLES of half Duration, an arch 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 arch 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 Emission, an arch 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.