BLAKE — ON THE CEANIA OF ANCIENT EACES. 
219 
has told us " the coins were under very little cover, and might have 
been imbedded very recently. " The exact depth is, however, 
unrecorded. 
The large flat plate, from (I presume) the bed of the watercourse, 
in the Heathery Burn Cave, is a most interesting relic. Although 
unquestionably modern, it is covered to the depth of \ inch with a 
thick deposit of fish-bones, of which the centra, neural arches, and 
haemal arches of the vertebrae can be observed, and amongst which 
some bones, possibly those of small frogs or tadpoles, may be 
detected. All these are in a very friable state. 
Eteukia. — In the osteological department of the British Museum 
are four skulls, of presumed high historical antiquity, which were 
derived from caves in Etruria. I give the following table of their 
measurements, taken in the same way as I have measured the East 
Ham skull. This table is necessarily defective, as in the skulls 
marked I. M. IS", and the apical extremities of the mastoid 
processes are broken away, and the horizontal periphery of the 
skull mai'ked + cannot be computed exactly, by reason of the left 
squamosal having posthumously bulged out from the parietals. 
u 
o ^ 
a 
Measurements. 
1 
* ■ 
i 
-g + 
u 
o 
* S 
Km 
Lontritudiual diameter 
61 
n 
7 
7^ 
n 
n 
Parietal diameter 
51 
H 
H 
H 
5 
5 
Frontal diameter 
5 
4^ 
H 
4i 
Vertical diameter 
4^ 
5f 
4f 
5 
5f 
5 
InteiTuastoid arch 
141 
I4i 
14f 
14^ 
14i 
I4i 
Intermastoid line 
4f 
4i 
4 
4^ 
4 
4i 
Occipitofroutal arch 
14i 
Uh 
m 
14i 
151 
14 
15^ 
Horizontal periphery 
21i 
20f 
20 
20i 
21 
20 
20| 
Proportion of breadth to length, the 
latter being estimated as 10 
8-518 
8-103 
7-321 
7 
7 
6-879 
6-666 
In I. M. M. and I. M. the occiput is globular, and shelving 
gently downwards. In + it is full and oval, the lower half of the 
supraoccipital being flattened. No undue prominence of the supra- 
orbital ridge, or of the paroccipital tubercles, is observable. Small 
ossa icormiana are present in the lambdoid suture of I. M. M., but 
in I. M. the sutures are obliterated ; nor does + exhibit any 
peculiarity in this respect. The frontal suture, however, in I. M. M. 
is present. The inion is distinctly marked in T. M. M. and in + ; 
not so, however, in I. M. N. In all three skulls the alisphenoid and 
parietal join. A slight depression of the vertex is indicated behind 
the coronal suture in the three skulls, and especially in 1. M. M. 
No history of the specimens has been preserved, nor is there any 
geological or antiquarian evidence demonstrating their antiquity. 
