Page:Transactions of the Geological Society, 1st series, vol. 4.djvu/82



2. Madrepora. See Parkinson, vol. 2. tab. 6. fig. 3. in the same limestone, and in a stratum resembling it in colour, situated on both banks of the Tyne near Glenwhelt.

3. A grey limestone may be observed in detached masses on the high banks above the East Allen composed almost entirely of a fossil called madrepore flexuosa. See Parkinson, vol. 2. tab. 6. fig. 8. The same rock also occurs above the bridge at Simonbourn.

4. Millepores, in a brown limestone from the neighbourhood of Aldstone.

5. Vertebral columns of the cap encrinite. Parkinson, vol. 2. tab. 8. fig. 4.; from the same rock and locality as 2.

6. Bivalve shells from the same rock and locality as 2.

7. Pectinite and large ostreæ. In the cockleshell limestone, and in the blue limestone quarried at Newton-Hall near to Corbridge.

In the shale.

1. Calcareous casts of the vertebral columns of the cap encrinite; (St. Cuthbert's beads) Parkinson, vol. 2. tab. 8. fig. 4. In Allendale, Weardale, &c. On the banks of the Greta, and in a stratum above Tecket water-fall near Simonbourn: also on the shores of Holy Island.

2. Impressions of pectinites about 1$$\scriptstyle \frac 12$$ inch in diameter: Aldstone moor.

3. At Hairshaw and at other places on the North Tyne the shale contains nodules of clay ironstone, and small muscle shells filled with the same ore.

In the sandstone.

1. Impressions of pectinites on hard slaty sandstone (hazle) in Allendale.