XII On the Tremolite of Cornwall.
By the Rev. W. GREGOR.
hononary member of the geological society.
I do not know whether some observations upon a fossil of the
Tremolite species, which I discovered some time since in the county
of Cornwall, may be worthy the attention of the Geological Society.
I was induced to record them for the following reasons. I was not
aware that tremolite had ever been noticed before in our western
counties. The existence of it in the particular rock which I should
conceive would be classed amongst the serpentine, is not, as I am
informed, an usual occurrence: and above all, I wish to draw
the attention of experienced and scientific geologists to the district
where this fossil was found.
I met with it nearly on the summit of a hill, in a rock which breaks forth in masses forming an irregular and picturesque ridge called Clicker-tor. It is situated about three miles from the town of Liskeard, very near to the great road which leads to Plymouth. This ridge of rock is at a considerable elevation extending in a direction from east to west, and (if I may venture to judge by the eye) for upwards of a quarter of a mile in length. It forms a very
