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MR. ST. GEORGE MIYART ON THE SKELETON OE THE PRIMATES. 
The pectoral limb, minus the manus, is measured from the same point above to the 
anterior margin of the distal articular surface of the fore- arm. 
The length of the scapula is estimated by a line drawn from the anterior (in Man 
superior) margin of the glenoid surface to the posterior (in Man inferior) vertebral angle. 
The Humerus is measured from the summit of its head to the distal end of the ulnar 
(or inner) margin of the trochlea. 
The Radius is measured from its head to the end of the styloid process. 
The Ulna, from the end of the olecranon to that of the styloid process. 
The Manus is measured from the distal margin of the radius to the extremity of the 
longest digit. 
The length of the Carpus is estimated by a line drawn from the summit of the semi- 
lunar e to the distal end of the magnum. 
The length of the phalanges of the pollex, hallux, and third digits are given, as seen 
in skeletons, with the bones articulated together. 
The Pelvic limb is measured from the summit of the head of the femur to the distal 
end of the longest digit, the pes being articulated, and the posterior part of the tarsus, 
of course, not counted. 
The same, minus the pes, to the margin of the inferior surface of the shaft of the 
tibia. 
The length of the os innominatum has been estimated by a line extending from the 
highest point of the crest of the ilium to the lowest one of the tuberosity of the 
ischium. 
The conjugate diameter of the pelvis is measured from the anterior end of the sym- 
physis pubis to the posterior (in Man inferior) margin of the first sacral vertebra. 
Its transverse diameter is measured (wherever the brim of the true pelvis appears 
widest) in a line at right angles to the long axis of the trunk. 
Its oblique diameter is estimated by a line extending from the ilio-pectineal eminence 
to the summit of the sacro-iliac synchondrosis of the opposite side. 
The ilio-ischial angle No. I. is that formed by the superior (in Man posterior) margin 
of the ischium with the ilio-pectineal line. 
The ilio-ischial angle No. II. is the one made by the same with the upper (in Man 
posterior) margin of the ilium. 
The length of the femur is taken by measuring from its highest to its lowest ex- 
tremity. 
The tibia is measured to the lower end of the internal malleolus. 
The length of the pes is taken from the distance between the end of the tuberosity of 
the os calcis and that of the longest digit. 
That of the tarsus, from the posterior end of the os calcis to the distal margin of the 
ecto-cuneiform *. 
* Dr. Ltjcae measures this segment only from the front of the articular surface for the tibia ; hence there 
must necessarily he discrepancies between his estimates and mine. 
