TRANSACTIONS OF SECTION C. 499 
6. Notes on certain Trilobites found in the Stockingford Shales. 
By V. C. Inne, B.A., F.G.S. 
Among the fossils found at Hartshill Hayes in the Abbey shale sub-division 
of the Stockingford shales, numerous forms occur, representing young stages in 
the development of certain 7’rilobite genera. Among these are the following : 
1. Liostracus sp.—The development is similar to that of Liostracus as 
described by G. F, Matthew. 
2. Holocephalina sp.—The early stages of this genus possess a well-marked 
glabella, widening anteriorly. This becomes less convex in later stages, its 
anterior margin disappears, and finally the glabella is only rep-esented by two 
short posterior grooves. 
3. Paradoxides Hicksii.The development is similar to that of Paradoxides 
as described by G. F. Matthew. 
4. Certain new forms of Agnostus.—The anterior portion of the glabella 
becomes obliterated in the later stages, while the axis of the tail becomes 
relatively larger with increased development. 
7. The Carboniferous Limestone at the Head of the Vale of Neath, 
South Wales. By C. H. Cunninaton. 
8. On a New Form of Rock-cutling Machine. 
By Professor W. S. Bouuron, D.Sc. 
9. Interim Report of the Geological Photographs Committee. 
10. Interim Report on the Microscopical and Chemical Composition 
of the Charnwood Rocks. 
