With this part of the Proceedings of the West- 
Riding Geological and Polytechnic Society is issued a pho- 
tograph of a limestone quarry at Draughton, near Skip ton. 
It is intended to send out one or more such photographs 
yearly, and the series will ultimately illustrate many of 
the most remarkable features of Yorkshire Greology. 
Some account of the contorted limestone of Draughton 
will be found in the Proceedings for 1867 (vol. iv. p. 577). 
See also pp. 3 et seqq. in the current part. The rock in- 
question belongs, apparently, to the top of the Carboni- 
ferous Limestone, which is here almost undivided. 
The following photographic plates will be issued in 
future years, and others may be added as opportunity 
' offers: — 
1. Section of the Craven Fault at Ingleton. 
2. Junction of Limestone and Slates on Moughton Pell. 
3. Junction of Slates, Conglomerate and Limestone, at 
Thornton Porce. 
4. Contorted Limestone at Thornton-in-Craven. 
All these are situated within the West^Eiding. 
The photographs will be sent to all members whose 
subscriptions are not in arrear. 
L. C. MIALL, 
Assistant Secretary, 
