493 
Dr. Berger’s Account of the Isle of Man . 
change being extremely sudden ; the unstratified portion having a 
lugged appearance and being filled with fossils, the surrounding 
strata thin, slaty, and scarcely containing a trace of any. 
For the characters of the annexed list of fossils I am indebted to 
Mr. Sowerby, who kindly undertook their examination. 
1. Anomites punctatus. 
Martin. Tab. 37. fig. 6. 
2. Producti. Min. Con. 59. 
3. Productus Scoticus. 
Min. Con. 59. fig. 32. 
4. Productus, finely striated. 
5. Productus, another variety with 
intermediate striae. 
6. Cardium, new ? See Min. Con. 82. 
7. Spirifer. Min. Con. 2 65. 
Lin. Trans. Vol. 12. p. 516. 
8. Spirifer, flatish. 
9. Trilobite. 
10. Nautilus complanatus. 
Min. Con. 261. 
11. Ammonites Henslowi. 
Min. Con. 262. 
12. Pentacrinites. 
13. Madreporites. One of these very 
large and entirely new. 
14. Tubipore. 
15. Entrochi. 
16. Caryophyllea. Several Species. 
A dark shale, containing much mica, alternates two or three times 
with the limestone between Derbyhaven and Cass-ny-Hawin. 
SANDSTONES AND BRECCIAS. 
The sandstones pointed out by Dr. Berger, differ very considerably 
in character. 
The sandstone at Peel, which alone is stratified, occurs both fine 
grained and under the form of a breccia •, spangles of mica are 
dispersed through it, and it is sometimes mixed with much 
argillaceous matter. Strata of these appearances alternate. Towards 
the northern extremity of this formation, near Knocksharry, it 
terminates in an unstratified breccia containing limestone, agate, 
and ferriferous carbonate of lime. The limestone is of a dusky 
