92 
A. large area has been excavated to a depth of 45 feet from 
the surface, down to the red rock, giving the following thick- 
nesses of the beds, viz. — 
a. Peat Moss 17ft. Oin. 
b. Sandy Clay or Loam 1ft. 6in. 
c. Boulder Clay or Till 26ft. 6in. 
d. Soft Red Rock 
Commencing with the red rock, the following particulars 
appeared worth recording : — 
d. The soft red rock forming the base of the section is the 
lower member of the trias. The surface of the rock was 
covered with water, which prevented an examination of it, 
but a large detached fragment was found lying upon it, which 
was not at all worn. 
c. The boulder clay or till had a thickness of 26ft. 6in., 
and contained boulders in abundance. It had no parting of 
sand or gravel, but small patches of red sand occurred about 
the middle, and of small gravel near the base. Small cubical 
fragments of coal were very plentiful, and many pieces of 
black shale. The following list of boulders was made from 
those found in the excavations, viz.— 
Greenstone. One very large boulder, much striated, and 
many smaller ones. The largest boulders were of this rock. 
Granites. Four varieties, all much water worn ; the grey 
and green granites decomposed and very friable. 
Limestones. Dark limestone boulders plentiful, one con- 
taining a good specimen of “Productus Gigantens” on the 
unworn surface, the other side being deeply striated and 
much worn. 
Light grey limestones, much worn. 
Reddish limestones (permian), very little worn, and pro- 
nounced by the workmen to be “ Bedford limestone,” because 
worked at Bedford, in the neighbourhood. One fragment of 
this limestone occurred within four feet of the surface, and 
was very little worn, the corners quite sharp. 
