Note 27 — THE CRANIA

It seems advisable to mention at this point the exact method used by the writer in the measurement of the orbits, for there appears to be not a little discrepancy in this respect among different workers. The measurements are those of Broca: The breadth is from dacryon (the point of intersection of the lachrymo-frontal suture and the sharp free orbital border of the lachrymal canal) to the most distal part of the lateral boundary of the orbit, below the malo-frontal suture; while the height is the maximum height, from about the center of the lower border of the orbit. Both dimensions can be taken with fair accuracy by either a graduated rod or by the two sharp points of the compas glissière. The main point is that the measurements should not comprise any part of the borders of the orbits, particularly the outer one, which differs considerably in thickness and breadth, and part of which seems not infrequently to be included by those who take these measurements.