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can be observed is very considerable. Towards tbe S.E. 
no clay is found, tbe sandstone reaching tbe surface ; but 
towards tbe centre, in a westerly direction, where tbe bones 
were deposited, in one section is a bed of clay from five to six 
feet thick; next a bed of grayish sand, of about two feet, which 
runs out a little further to the south-west to two inches in 
thickness ; this is succeeded by a bed of yellow sand two feet 
thick ; and fourthly, by another bed of white sand, in which 
are a vast number of boulders, perfectly rounded by attri- 
tion. These are, with few exceptions, all grit or sandstone, 
with an occasional fragment of limestone or chert. In 
another direction is a bed of dark red gravel; while in 
the particular spot where the Hippopotamic remains were 
deposited no sand or gravel appears, but a series of beds 
of clay, of variable quality, with occasionally large boulders, 
some of which contain impressions of Stigmaria, and frag- 
ments of trees, to the depth of ten feet, where it becomes 
valueless for the purpose of brickmaking, consisting of so 
large a proportion of sediment or mud, and is consequently 
not worked. 
It is much to be regretted that the attention of the 
labourers was not earlier directed to the preservation of 
these interesting remains, of which a number had been 
neglected and destroyed before their curiosity was excited 
by the discovery of one of the massive thigh bones and the 
fore arm, whose unusual size, to use their own words, " made 
them think they could not be Christians' bones," and, there- 
fore, to solve this important problem, they determined to 
bring them to the Philosophical Hall. Upon ascertaining 
their identity, I visited the field daily, and sometimes twice a 
day, and ascertained that two scapulae, six molar teeth, 
three incisors, and various small bones, had been found and 
destroyed. I was also informed that in the adjoining brick- 
field, in the same bed of clay, several large bones had been 
