248 
NOTES ON THE COAST BETWEEN REDCAR AND SCARBOROUGH. 
BY C. rOX-STRANGWAYS, F.G.S., OF THE GEOLOGICAL SURVEY. 
{Written for the Excursion Circular of the Whitby Meeting, 
July olst and August 1st, 1896.'] 
The northern part of the Yorkshire Coast wliich the Society 
propose visiting this summer comprises a series of lofty cliff sections, 
giving magnificent exposures of nearly the whole of the Lias, and a 
considerable portion of the Lower Oolite. Commencing at the 
northern end we first meet with the thin limestones and oyster bands 
that are seen on the shore opposite Redcar on the south side of the 
estuary of the Tees, and which constitute the zones of Am. angulatus 
and Am. Bucklandi. 
The Rhsetic beds and the lowest beds of the Lias (zone of Am. 
planorhis) are not exposed here, but have been met with in artificial 
sections a short distance inland. Proceeding southwards from Kedcar 
the cliff is occupied entirely by glacial deposits till we reach Saltburn, 
a distance of four miles. At this pomt the northern escarpment of 
the Lias strikes the coast, the whole of the Middle Lias and a large 
part of the Lower Lias being exposed in the precipitous face of 
Huntchff. 
On the shore here the Jamesoni-ho^di^ form extensive scars at low 
water, while in the cliffs above we have the full thickness of the 
capricornus and margaritatus-heds, the spiiiatus-heds containing 
the Main Seam of Ironstone outcropping just along the edge of the 
cliff. This section is again repeated at Hummersea where the beds 
are more accessible, the junction between the Lower and Middle Lias 
being close to high- water mark. In the magnificent cliffs of Boulby, 
600 feet in height, just south of this, there is a complete section from 
the lower part of the Oolites to the Jameso7ii-heds. A great part of 
this, from the precipitous nature of the cliffs, is inaccessible, but the 
higher portion may be reached in the old alum works. These alum 
works are well worth a visit as showing the large extent of this 
industry in former times, and as being the locality from wdiich many 
