142 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



Silurian fossils have been collected. Fine specimens 

 of Chain, Pipe, Honeycomb, Sun, and other Corals 

 are to be found here. In the gathering of greenish- 

 blue shale taken by me from this locality were a 

 number of minute Brachiopoda. 



Ostracoda, 6 species. The rare Beyrichia EJoedeni 

 var. torosa, and Priinitia fahuUna, were got here. 



3. Dudley Castle Grounds.— The shale was of a 

 dark, dirty-blue colour, and contained many well- 

 rounded quartz - grains, minute white crystalline 

 masses of calcite, small particles of hematite, some 

 minute cubes of iron pyrites, Crinoids, Polyzoa, 

 small Brachiopoda, and one pearl. 



Ostracoda, 18 species. Beyrichia Kloedeni var. 

 torosa turned up in this gathering. 



4. The Wren's Nest, near Dudley. — The Silurian 

 strata (Wenlock) at this famous locality have been 

 squeezed up into a large anticlinal angle of about 

 80°. In certain limy layers interbedded with the 

 shales the usual Silurian fossils are in great plenty. 

 The shale searched was yellowish in colour, and 

 when washed left a quantity of small hard particles 

 that did not float off. It contained a large quantity 

 of well-rounded quartz-grains, some minute scales of 

 mica, a few minute pieces of black scoriaceous lava, 

 some rounded and ovoid crystalline masses of calcite, 

 some particles of opaque and clear calcite, a few 

 minute magnetic particles, some Crinoids, Polyzoa, 

 small Brachiopoda, two small black coprolites, a 

 bone of Archceocidaris, one minute pearl, a few 

 examples of Spirorbis, and some spicules of Astrceo- 

 spongia patina, Roem. As the yellow Silurian shales 

 generally waste rather freely, the reason of this one 

 not having done so may be that the upturning of the 

 strata possibly had something to do with the harden- 

 ing of the shale in this instance. It is remarkable 

 that the large fossils have not suffered to a greater 

 extent. 



Ostracoda, 25 species. The very rare Beyrichia 



