﻿28 



PROF. S. H. REYNOLDS ON THE 



[vol. lxxii, 



(c) Limeridge Wood, Tickenham. 



Probably owing to the visit having been made in the summer 

 when vegetation was luxuriant, no exposures of igneous rocks were 

 detected when Dr. Lloyd Morgan and I were working at the Car- 

 boniferous volcanic rocks of the Bristol district in 1903. A visit, 

 however, paid in March 1913, showed that ' trap ' is fairly well 

 exposed on the border of Sir John's Wood (the name of the 

 southern portion of Limeridge Wood). The exposure is reached 

 by following Wood Lane (or, as it appears in the 1904 Ordnance 

 map, Old Lane), which diverges north-eastwards from the main 

 road at the corner known as Luggard's Cross. It may also be 

 approached across the field from Hale's Farm, Tickenham Hill. 

 The exposure lies five-sixths of a mile north-east of Tickenham 



In Sanders's map two exposures of ' trap ' are shown in this 

 neighbourhood, the more easterly being the one now under con- 

 sideration. Of Sanders's more westerly exposure I have met with 

 no trace : numerous pieces of limestone, but none of ' trap,' were 

 found in March 1914 scattered over the part of the field where the 

 exposure is marked. In the 1-inch Geological Survey map no 

 igneous rocks are shown in this locality. In Q. J. Gr. S. vol. lx 

 (1904) p. 147, the exposure is mentioned as occurring ' near 

 Cadbury Camp,' which lies about three-quarters of a mile to the 

 west. 



The exposures occur in the hedge-bank along the southern 



Church. 



Fig.4.-Sketch-map showing the 

 position of the trap near 

 Limeridge Wood, Tickenham. 



Tickenham 

 Church 



