(42) 
they ate embedded; and, in appearance, altogether 
favouring the supposition of their being of a much 
more ancient date. 
In reference to the Encrinites, it appears, that 
there are several species of them in the Plymouth 
Limestone, and that each’ species had a distinct situ- 
ation for its habitat, or place of abode; as the parts 
of the different kinds are rarely found intermixed 
and blended together. Thus, the one figured: in 
Plate 2, is very different from those in Plate 3.— 
The former, taken from Queen Anne’s Battery, pre- 
serves a roundish, full form, such as we may suppose 
it to have been originally, when the animal was 
alive; while the latter, all which are the produce 
of the rocks between the Soap Manufactory, and 
Sandy Cove,: seem to be of a softer nature, probably, 
of .the Mollusca tribe, as the joints or portions. of 
the. stem, as well as the heads, are invariably com- 
pressed. and flattened. Plate 4, exhibits the stem of 
an: Encrinite. of a. different class again, from. either. 
of the former: this, taken from the Deyil’s . Point, 
must have been of a harder. substance,’ approaching; 
very. nearly to ‘the nature of bone, as it has pre- 
