Reports and Proceedings — Geological Society of London. 91 



" The area displays in a marked degree the phenomena of interference 

 cross-faults cutting a series of peripheral overthrusts round the 

 synclines, and parallel flexure-faults between the anticlinal buckles 

 and the synclinal axes." 



In conclusion, the author applies her results to the interpretation 

 of the complexities of the Judicarian-Asta region of the Dolomites 

 in general, and also to the explanation of the characteristic structural 

 forms of the Alpine system as a whole. 



II.— January 4, 1899. — W. Whitaker, B.A., F.E.S., President, 

 in the Chair. 



Captain A. W. Stiffe, in exhibiting a fossil Cardium (?) from the 

 beach at the foot of the cliffs of Ormara (Makran Coast), made the 

 following remarks : — " The specimen on the table has been kindly 

 lent to me by Mr. Ffinch, Director of the Government Indo- 

 European Telegraphs. The peninsula of Ormara, whence the shell 

 comes, is composed of a mass of flat-topped hills about 10 miles in 

 length; it is about 1,200 feet high at its western end, sloping down 

 to about 400 feet at its eastern end — flat on the top, and ending on 

 all sides in cliffs. The rocks are chieflj'^ clay, with a thin conformable 

 capping of shelly breccia 20 to 50 feet thick. The fossils in the clay 

 are difficult to find, and probably are generally enclosed in nodules 

 of the clay somewhat altered, as in this specimen. The fossil now- 

 exhibited was picked up on the sandy beach near the foot of the cliffs, 

 ■which are naturally undergoing rapid denudation. In a paper read 

 by me before this Society in la74, the formation was considered to 

 be of Miocene age by Mr. Etheridge. I should be glad to learn 

 whether this fossil supports that view of the age. Nearly all the 

 coast in question for many hundreds of miles is of similar formation ; 

 the strata are as a rule slightly inclined only and of fantastic 

 outline." 



The following communications were read : — 



1. "Geology of the Ashbourne and Buxton Branch of the London 

 and North- Western Eailway. — Ashbourne to Crake Low." By 

 H. Arnold-Bemrose, Esq., M.A., E.G.S. 



The southern part of the new railway from Ashbourne, through 

 Tissiugton and Crake Low, to Buxton exhibits several sections in 

 Trias, Boulder-clay, Mountain Limestone, and Yoredale Beds. 

 Interstratified with the latter is a thick bed of volcanic ash, with 

 thinner intercalations of tuff. Within a mile of Tissington ash is 

 exhibited four times in the cuttings, and according to the view of 

 the author it is the same bed repeated by basins and domes, one 

 of the latter of which is faulted. While the rocks succeeding the 

 ash in some places are limestones, cherts, and shales of Yoredale 

 type, in one section they resemble more closely the upper beds of 

 tlie Mountain Limestone. The limestones are often dolomitized. 

 The ash-bed is 144 feet thick where fully exposed ; it is stratified, 

 the beds varying in texture, and the lapilli in them range from 



