"Heavy ledged grey arenaceous limestone
with light greenish bands. Saw in the
rock a few crinoidal columns, A.
reticularis, Phipidomella penelope,
Spiirifer euruterines, Pholidostrophia
iurensis, Shepherdonta careara and
D. diminica.
"Impure cement rock with an abund-
ance of phosphatic inrolues.
Dark and crumbling cement rock in
thin layers, with an abundance of some
white spots which weather out as a
chally sheet. In the form of spines,
saw in place Chenetes gandelli, D.
oroni, D. euruterines, Trofidiptus.
This is the major furnishing ready are
the mill from siliceous Hamilton
rocks. In fact are the Hamilton fossils now for
these led as upmost.
"Heavy beds of a light blue cement
rock! Fossils almost absent them I not.
You says this zone has a natural dividing line,
The reason he calls it "Lower Upper Hydrobia".