18 Field Columbian Museum — Anthropology, Vol. II. 



Norma Posterior. — Well marked pentagonal form. The differ- 

 ence between the asterionic diameter and the maximum breadth is 

 25 mm. 



Norma Lateralis. — The frontal curve is regular but rapidly re- 

 treating to bregma, where there is a short horizontal plane just pos- 

 terior to bregma. At obelion the curve passes rapidly downward to 

 a short distance below lambda, which is the occipital point; there is 

 only a very slight break in the region at inion. The zygomatic arches 

 are unusually heavy and short. The alveolar prognathism is pro- 

 nounced. 



Norma Inferior. — Foramen magnum large and elliptical in form, 

 measures 37 x 30 mm. The occipital condyles are long and narrow. 

 There is a well denned protuberance for the jugular process. The 

 left foramen spinosum is unusually large and is bounded posteriorly 

 by the petrous bone. 



Sutures. — The coronal is exceedingly simple; the sagittal and 

 lambdoidal are coarsely denticulated. There are two small wormian 

 bones in both right and left coronal, two in right and left lambdoidal, 

 one at left asterion, two at left pterion and a long narrow bone at right 

 pterion, measuring 29x9 mm. 



Processes. — Mastoids small; external occipital protuberance 

 fairly indicated. Internal pterygoid plates almost nil. External plates 

 narrow above but broad below; there is no hamular process. 



Muscular Impressions. — Not so well marked as usual, although 

 the temporal lines are broad and plainly indicated throughout their 

 entire course. 



Mandible. — Of small size, condyles narrow and not long, condy- 

 loid process long and slender with rather shallow sigmoid notch. 

 Mental eminence weak, but fairly well developed mental tubercles. 

 Height of ramus 64 mm., height of symphysis 34 mm., mandibular 

 angle 130 . 



NO.40,613. — The skull of an adult male of large size and of great 

 weight. Cranial capacity, 1,545 cc - T ne upper and lower molars, 

 except the upper right third molar and the upper left outer incisor, 

 are in situ; the alveoli of the other teeth are present. The floor of 

 the orbital cavity, together with the turbinals and vomer, have been 

 destroyed. 



Norma Frontalis. — Forehead retreats beyond the large glabella 

 and projecting superciliary ridges. The minimum frontal width is 

 100 mm. The orbits are quadrilateral and deep set, with compara- 

 tively narrow infraorbital space. The nasal bones are long, broad 



