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RAYGTLL FISSURE. 
REPORT OF THE RAYGILL FISSURE EXPLORATION COMMITTEE, 
CONSISTING OF PROF. A. II . GREEN, M.A., F.G.S. ; PROF. L. C. 
MIALL, F.G.S. ; JOHN BRIGG, F.G.S. ; AND JAMES W. DAVIS, 
F.S.A., F.G.S., &c, (REPORTER.) 
For several years attention has been directed to a fissure or 
cave in the Raygill Quarries. Originally opening- to the surface, 
the fissure dips down in a southerly direction into the limestone, and 
during repeated operations of quarrying it has been from time to 
time cut across on the face of the quarry ; each exposure being 
at a lower level and exhibiting some new phase of character in 
the composition of its contents. It is stated by Mr. Todd, the 
manager, that originally and at the surface, the mouth of the 
fissure was quite closed up by a thickness of several yards of 
Blue Clay, in which, especially near the surface, there was a large 
number of pieces of limestone ; beneath the blue clay was a bed 
of yellow clay, and underlying the latter a considerable thickness 
of laminated clay, which will be mentioned again. In the blue 
clay near the surface two or three bones were found ; these were 
not preserved, nor was any definite record kept of their situation or 
occurrence. A reference to the photograph issued by this Society 
to its members for the year 1875, will shew that the orifice ex- 
posed was not very large, being about 8 feet in diameter, and 
situated much higher than at present. During succeeding years 
periodical visits have been made to the Quarry, and each time 
bones and teeth of several animals have been secured, with 
which a certain bed of sandy loam was replete. The majority 
of the specimens so obtained have been deposited in the Leeds 
Museum, but others have found their way into public or private 
collections. 
In October last year, the Annual Meeting of this Society 
was held at Skipton, and previous to the meeting the members 
paid a visit to the Ray gill Fissure. Before their arrival the 
Proprietor, P. W. Spencer, Esq., acceding to a request made by 
