74 Geological Society, 



Balfour, a genus of Plants new to British Rocks." By C. W. Peach, 

 Esq., A.L.S. 



3. " On the Occurrence of a Macrurous Decapod {Anihrapalce- 

 mon Woodwardi^ sp. nov.) in the Bed Sandstone, or Lowest 

 Group of the Carboniferous Pormation in the South-East of Scot- 

 land." By Robert Etheridge, Esq., jun., E.G.S. 



4. ''On the Stratigraphical Position of the Corals of the Lias of 

 the Midland and Western Counties of England and of South Wales." 

 By R. E. Tomes, Esq. 



May 23, 1877.— Prof. P. Martin Duncan, M.B., E.R.S., 



President, in the Chair. 



The following communications were read : — 



1. " Remarks on the Coal-bearing Deposits near Erekli, the 

 ancient Heraclea Pontica, Bithynia." By Rear-Admiral T. A. B. 

 Spratt, C.B., F.R.S., E.G.S. 



In this paper the author described the occurrence of true Coal- 

 measures near Erekli, on the north coast of Asia Minor, from 

 observations made by him when on service in the Black Sea in 1854. 

 The coal was obtained near Kosloo, about 30 miles east of Erekli, 

 where it cropped out on the sides of a valley, and was worked by 

 horizontal drifts. The district was much disturbed by faults, and 

 the workings could only be driven from 100 to 400 yards into the 

 hill. In the eastern ridge bounding the valley of Kosloo there were 

 11 or 12 seams of coal of diiferent thicknesses in a distance from 

 IST. to S. of about 2 miles, one of them being about 18 feet thick, 

 and the best coal forming a seam of 4 ft. 10 in. The seams dipped 

 S.E. about 26°. They were interstratiiied with shales, sandstones, 

 and conglomerates of quartz -pebbles, and occasionally with thin 

 bands of clay and ironstone. Eiom some of the seams the author 

 obtained fossil remains of plants, which sufficiently prove that these 

 coals belong to the Carboniferous period. They include, according 

 to Mr. Etheridge, species of Lepidodendron^ Lepidostrohus, Ocdamites, 

 Pecopteris, Splienopteris, Neuropteris (?), Sigillaria, Siigmaria^ Glos- 

 sopter{s(?), and SphenopliyUum. The author also noticed several other 

 localities in the immediate neighbourhood where coal was known to 

 exist under somewhat similar conditions. He also referred to the 

 geology of Erekli itself, and noticed especially the occurrence of 

 patches of more or less altered shales and marls, probably of middle 

 Tertiary age, overlying the igneous rocks of which the country 

 consists. 



2. "■ On the Structure and Affinities of the genus SipJwniaJ' By 

 W. J. Sollas, Esq., B.A., E.G.S. 



3. " On the Serpentine and associated Rocks of the Lizard 

 District." By Rev. T. G. Bonney, M.A., F.G.S., Fellow and late 

 Tutor of St. John's CoUege, Cambridge. 



The author stated that considerable doubt appeared stiU to exist 

 as to the true relations of the Lizard serpentine and the associated 

 hornblende schists, and as to the origin of the serpentine. He had 

 carefully examined aU the junctions accessible on the Cornish coast; 



