REPORT ON THE HUMAN CRANIA. 
17 
The mean internal capacity of Prof. Flower's specimens was 1252, that of Dr. 
Rolleston's 1285, of my own 1281. All therefore are microcephalic. 
As a result of the examination of the collective measurements of the extensive series 
of Bush crania which have now been recorded by craniologists, one may state that these 
skulls are on the average mesaticephalic, tapeinocephalic, orthognathic, platyrhine, 
microseme and microcephalic. This result corresponds therefore with that at which 
Flower, Eolleston, and myself had independently arrived from the examination by each 
of us respectively of the series of crania which had passed through our hands. 
Dr. Kolleston has also directed attention to the form of the lower jaw as very 
characteristic of the Bush cranium. My specimens closely corresponded in the feebleness 
of the chin, the lowness of the coronoid process, the shallow sigmoid notch, and the 
everted angle with his description, but the hollowing out below the internal dental 
foramen to which he also refers was not specially noticeable. Further, I may point out 
another character which obviously deserves consideration, viz., the almost equality in 
length between the diameter from the angle of the jaw to the chin, and that between the 
opposite angles of the same bone. In each skull the basi-nasal and the basi-alveolar 
diameters exceeded the gonio-symphysial length, and similarly the intergonial diameter 
was always below the minimum frontal diameter in the same cranium. 
Dr. Fritsch also lays considerable stress upon the breadth of the face, on that of the 
skull in the spheno-frontal region, and indeed on the breadth of the transverse 
measurements generally, in the Bush crania. In my description (p. 11) I have pointed out 
how the transverse diameter in the parietal region greatly dominated over the 
interzygomatic, so that the skulls were cryptozygous. 
FUEGIAN AND PATAGONIAN. 
. Plates L, VI. Tables EL, XVIIL, XIX. 
The crania marked Fuegian consisted of four adult specimens, only one of which 
possessed a lower jaw. This specimen was soldered up in a zinc case marked "Head of 
a Fuegian," but all the flesh had been removed and the brain was putrid ; it is the 
skull D in the following description. One skull was marked Patagonian. All these 
crania were obtained at Puntas Arenas, in Magellan's Strait, and were presented as un- 
doubted Fuegian skulls to Sir Wyville Thomson by Don Diego Duble Almeida, the 
Governor of the Chilian colony. Two of the Fuegian crania were somewhat injured, but 
the other two and the skull marked Patagonian were in good condition. 
Fuegian. — The Fuegian skulls are distinguished in the following description by the 
letters A to D inclusive. A and D were males, C was a female. B was more difficult to 
determine, but probably a female. 
(zool. CnALL. EXP. —PART XXIX. — 1884.) ■ Ff 3 
