Page:Transactions of the Geological Society, 1st series, vol. 3.djvu/407



XII On the Tremolite of Cornwall.

By.

.

[Read 21st May, 1813.]

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