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Rev. 0. Fisher — Vertical Tertianes at Bincombe. 



III. — Vertical Tertiaries at Bincombe, Dorset. 

 By the Eev. 0. Fisher, M.A., F.G.S. 



I HAVE just read the abstract of Mr. Clement Eeid's paper to 

 the Geological Society (April 29, 1896) upon the Eocene 

 deposits of Dorset. Many years ago I paid a good deal of attention 

 to these beds, and have many notes upon what I saw. The section 

 which I now send is reduced from my notebook, a section which 

 in my belief has never been seen by any geologist except myself. 

 It was taken when a large pit was open, and the section clear and 

 unmistakable. I copy the words I wrote on the spot. " December 

 24, 1855. Examined the large gravel-pit recently opened in the 

 Tertiary Eocene beds at Bincombe. A section is given on the last 

 leaf [of the notebook]. The deep cuttings lately made show the 



Sections of Eocene beds at Bincombe, Dorset, exposed in 1855. Depth of section 



about 24 feet. 



Fig. 1. 



(a) Sand and coarse pipeclay. 



(b) Bound gravel of flint pebbles, black inside. 



(c) Sand and clay. 



(d) Blocks of cherty grey flint, with numerous casts of fossils. 



(e) Subangular flint gravel, not ochreous, used for road metal. 



beds to be vertical, following the dip of the chalk. The beds have 

 much the character of those at Bournemouth, except that they are 

 much coarser. The place of the large flints with fossils is shown in 

 the section. 1 The manner in which the ends of the vertical beds 



Fig. 2. 



/ b- 



( a ) Horizontal chalk. 

 (/,/) Fault. 

 ( b ) Eocene beds. 

 ( c ) Nearly vertical chalk. 



1 These casts were frequently collected by the Bev. W. Barnes, the Dorsetshire 

 Poet. There were formerly some in the Dorchester Museum. Similar easts occur at 

 Haldon Hill, near Exeter, and also in the neighbourhood of Evershot. 



