190 PROCEEDINGS COTTESWOLD CLUB 1906 
EXCURSION TO WICKWAR AND HAWKESBURY 
TUESDAY, JULY 25th, 1905 
Directors : REV H. H. WINWOOD, M.A., F.G.S., and L. RICHARDSON 
(Report by L. RICHARDSON) 
The Members who attended the third Meeting, in addition to the 
Directors, were the Rev Walter Butt (President), Mr A. S. Helps 
(Hon. Treasurer), Messrs W. Crooke, F.A.I., G. M. Currie, T. ‘S. 
Ellis, C. E. Gael, F. Hannam-Clark, J. N. Hobbs, W. Margetson, 
J. W. Skinner, A. Slater, W. J. Stanton, W. Thompson, Surgeon- 
Major I. Newton, and the following visitors attended: Messrs 
Chatfield, W. May, S. J. Coley, A. E. Zealey, and C. J. Watkins, 
ps re 
Arrived at Wickwar, the Members walked over the rising ground 
to the west of the Station, Mr Winwood pointing out on the way an 
exposure of Old Red Sandstone. In the large quarry by the side of 
the Charfield road, where the Carboniferous Limestone is extensively 
worked, with a map spread out on the rocks in front of the Members, 
Mr Winwood gave an outline of the geology of the northern portion 
of the Bristol Coalfield. They had crossed, he said, in their walk 
from the Station, the Old Red Sandstone and Lower Limestone 
Shales, and now stood in a quarry in the Zaphrentis-Zone of the 
Carboniferous Limestone. All these rocks dipped approximately 
westwards under the Millstone-Grit and Coal-Measures, to appear again 
in the ridge by Tytherington. He recommended those who desired 
fuller information to read Dr A. Vaughan’s masterly and original paper 
on ** The Paleontological Sequence in the Carboniferous Limestone 
of the Bristol Area.” * 
Mr Watkins discovered the eggs of Zetranychus lapidum securely 
attached to the limestone in this quarry. Like the red spiders and the 
harvest-bug, the young of the earth-mite possess only six legs, while 
the parents are furnished with eight—the character of the perfect 
state of all mites. In comparison with the movements of other 
animals, these tiny creatures can command a speed of locomotion 
probably the swiftest known. 
Passing through Wickwar, other sections of the Old Red Sandstone 
were noticed. At the bridge over the Little Avon, Mr Richardson 
continued the outline of the geology of the district commenced by Mr 
Winwood. The rocks exposed in the brook belong to the Keuper 
Series—the oldest division of the Neozoic Group present in the 
1 Quart. Journ. Geol. Soc., vol. lxi. (1905), pp. 181-307, and pls. xxii-xxix. 
