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was on the occasion of ths visit to Boulby, where, under the 

 leadership of Mr. T.W. Saunders, the huge quarries of Alum 

 Shale were visited, and its characteristic fossils obtained in 

 abundance. The occasion was made memorable by not only 

 a visit to the vast remains of the old Alum Works, consisting 

 of kilns, boiling and evaporating vats, etc., but by having 

 the opportunity of examining the last sample crystals made 

 at the works, which had, by a fortunate accident, been 

 preserved amongst a quantity of untreasured remains. 

 Here, the dogger underlying the estuarine-series of the 

 inferior oolite was examined, and on this and other occasions, 

 the broken-up and worn fossiliferous contents were noted 

 and it is hoped on identification that much light will be shed 

 on the obscure problem of the condition and nature of the 

 pre-existing strata from which this formation was derived. 

 At the Alum Quarries, the dogger is of a very ferruginous 

 nature, and is about four feet in thickness, but is variable 

 in this respect and also in its lithological character. The 

 enormous thickness of the Alum Shale {zone of ammonites 

 communis) is well shewn in the workings of these old aban- 

 doned quarries. 



The Geological Section had also an opportunity on the 

 subsequent visit to Roxby of identifying the dogger outcrop 

 on the opposite side of the valley, and of noting its general 

 position corresponding to the cliff exposures. On this 

 occasion, too, were noted some very fine examples of current 

 bedding in the exposures in a sandstone quarry, and photo- 

 graphs were taken of them. 



The visit to Hutton Rudby, under, the guidance of the 

 Rev. J. C. Fowler, gave the members an opportunity of 

 noting the Rhsetics in the Leven, where there were some 

 fine exposures with layers and pockets of veined and clear 

 gypsum intercalated in the strata. Not far away in a bore- 

 hole at East Harsley, the same strata appears to have been 

 cut through, but the contractor having charge of the boring 

 operations, not being a geologist, did not carefully preserve 

 the material from the boring, but an uncertain twelve feet 

 seems to be in the position where one might expect the 

 Rhsetics to occur. As a source of water supply, the boring 

 was unfortunately a failure, but it will be of interest to 

 preserve a record of the strata passed through, and this will 

 be obtained. 



