724 PRINCIPAL SIR WILLIAM TURNER ON 



to the parietal eminences was steep and the side walls were almost vertical, the post- 

 parietal region was not flattened and the occipital squama was bulging ; the inion and 

 curved lines were moderate and the processus retromastoideus was distinct. The skull 

 was phoenozygous. 



The lower facial forehead slightly receded ; the glabella and superciliary ridges were 

 moderate, and the latter were separated from the supraorbital borders by the notch ; 

 the trigone was distinct and slightly concave, the transverse supraorbital depression and 

 the frontal eminences were moderate, the bone was not metopic. The nasion was a 

 little depressed, the internasal suture was 23 mm. long, the nasal bone was 11 mm. 

 wide, the interorbital width was 22 mm. The mastoids were moderate. The frontal 

 longitudinal arc was the longest, the occipital was the shortest. 



Norma facialis. — The sharp lateral border of the anterior nares faded away on 

 the incisor fossa ; behind it was a narrow prsenasal fossa bounded behind by the margo 

 infranasalis in the wall of the inferior meatus, which also formed a sharp border 

 separating the nasal floor from the incisive region, and ended in the feeble maxillo-nasal 

 spine. The nasal height was 48 mm., its width 26 mm., the index, 54"2, was platyrhine. 

 Although the gnathic index was only 98, the alveolar border was directed obliquely 

 forward and showed alveolar prognathism. The orbital index was only 78 "9, and the 

 orbits were low, microseme. The canine fossae were deep. The hard palate was highly 

 arched, the teeth were partially worn ; the palato-maxillary index was 120 "7, brachy- 

 uranic. The lower jaw was strong, chin square projecting, alveoli deep, teeth worn, 

 angle almost rectangular, coronoid broadly triangular, mental foramen placed below 

 second premolar. The complete facial index, 9 4 '5, and the maxillo-facial index, 51 '9, 

 showed the face to be high and narrow, or leptoprosopic. 



The cranial sutures were distinct ; no Wormian nor epipteric bones, nor third condyl, 

 nor pterygo-spinous plate were seen. The jugal processes were tuberculated, and a strong 

 paramastoid was separated from the mastoid by a deep mastoid groove. The styloid 

 processes were ossified and the glenoid fossae were deeply concave. The basi-bregmatic 

 height exceeded the greatest breadth, and the vertical index was 76. The breadth - 

 height index was 102*9, and the skull was high and narrow, or hypsistenocephalic. 

 The cranio-facial index was 69*4 and was therefore less than the cephalic. The 

 nasio-malar index, 107 '3, was mesopic. 



The skull of the child Taungtha No. 23, judging from the dentition, was about 

 seven years of age. Its dimensions are recorded in Table VI., from which it can be 

 seen that it was hyperbrachycephalic, 8 6 '8, and the cephalic index was greatly in 

 excess of the vertical index, 78. It had the customary characters of a child's skull. 

 The gnathic index, 92"6, was orthognathous ; the nasal index, 62'5, was platyrhine; 

 the orbital aperture was rounded and the index, 93'9, was megaseme ; the hard palate 

 was low, the maxillo-premaxillary suture was distinct, and the palato-maxillary index, 

 148 '7, was hyperbrachyuranic. The nasio-malar index, 107*5, was mesopic. The 

 squamoso-temporal bones were absent. In the lower jaw the chin was feeble, not project- 



