510 MR. W. A. E. USSHER ON THE DEVONIAN 



near Anstey's Small Cove, and also to the (xoniatite-limestones of the 

 Chudleigh district and of Oldchard. 



The KnoUen-Kalk passes under the red slates of the Cypridinen- 

 Schiefer, so well exposed in the Kingsteignton railway-cutting, and 

 in lane-cuttings west of Bishopsteigntou. On the south bank of 

 the Teign west of Combe-Cellars the KnoUen-Kalk, consisting of 

 dark slates with hard concretionary nodules in which no fossils 

 were found, passes under the Entomis-slates. 



In the autumn of 1889, I reinvestigated the boundaries of the 

 Kingsteignton limestone on the 6-inch scale map ; and, in following 

 its faulted junction with the Culm -rocks from Lindridge Hill 

 toward Whiteway Parm, discovered a strip of red, compact, con- 

 cretionary limestone, associated with red and grey slates resting 

 directly on the massive limestone. Although these beds are cut 

 out by the fault at Torhill Cottages, they reappear in the form of 

 the Chudleigh Goniatite-limestone above an abandoned quarry in 

 grey finely crystalline limestone at 15 chains from Whiteway Farm. 

 Here we have a replica of the junction in Lower-Dunscombe quarry, 

 and I found many very imperfect traces of Goniatites, which on 

 slicing revealed the septa. Just after this discovery I noticed a 

 large red limestone block used to cover a drain in Whiteway Farm- 

 yard, containing a large example of Goniatites intimiescens, and 

 traces of other Goniatites, including G. scujittarius. Thinking the 

 block might have been brought from Lower Dunscombe, which is 

 two and a quarter miles due north of Whiteway Farm, I questioned 

 Mr. Soper, the farmer, who assured me that the block had been 

 quarried on his farm, and had, to the best of his recollection, been 

 obtained from the neighbouring quarry, viz. that in which I had 

 shortly before proved the presence of the Goniatite-beds. This dis- 

 covery, in enabling us to trace the connection of the Goniatite- 

 limestones with a continuous limestone formation extending from 

 the Eifelian upward, is of the utmost importance. 



Another link in the chain of evidence was obtained at Old- 

 chard, about halfway between Whiteway^ and Lower-Dunscombe 

 Farms. Here the Devonian rocks are faulted against Culm- 

 measures on the south and west, and concealed on the north by 

 debris from the Trias and Cretaceous formations. 



In Oldchard-Well Farmyard pale grey, finely crystalline, massive 

 limestones are exposed in a quarry behind the house, where they 

 are faulted against red shales with plaques of limestone, exactly 

 similar to those of Silver Cove. Beneath these are thin-bedded, 

 compact, nodular limestones, which in the adjacent orchard are seen 

 to rest upon the massive grey limestone. No fossils were obtained 

 in the farmyard, but between 10 and 15 chains west of it grey and 

 greenish clay-slates, with nodular pieces of compact limestone, but 

 more often of pale buif powdery matter resulting from its dissolu- 

 tion, recall the Knollen-Kalk by the Iliver Teign. These beds rest 

 on red shales or slates containing red nodular limestone, which is 

 ploughed up in an adjacent field, and proved to be rich in Chimeniae, 

 associated with very imperfect Goniatites. 



