88 Reports and Proceedings — Geological Society of London. 



The Kythraean rocks attain a great development along the southern 

 side of the Kyrenian Mountains, They are based on breccias and 

 conglomerates made up of fragments of the Trypanian Limestones, 

 and are thus probably unconformable. No fossils, except a few small 

 tests of Globigerina and a few fragments possibly of shells, have 

 been found in this series, which consists entirely of volcanic debris 

 embedded in a calcitic matrix, like the ' Macignos' of Italy. 



The Idalian Series appears to rest conformably on the last. The 

 gypsum beds are largely developed in the south ; the white chalky 

 marls and limestones extend over nearly one-half of the island, 

 and are always conspicuous from their intense whiteness. Fora- 

 minifera are abundant, and other fossils have been found which 

 indicate that the beds are mainly of Oligocene age. 



Igneous rocks are most conspicuous in the centre of the island, 

 forming a mass of mountainous ground. They are intrusive into 

 the formations already mentioned. The rocks include augite-syenite, 

 rhyolite, liparite, olivine-dolerite, basalt, augitite, and several varieties 

 of serpentine. Considerable metamorphism and much jasperization 

 occur in association with them. 



While most of the older sediments were formed in deep water, 

 the fauna of the Neogene rocks is that of shallow-water deposits. 

 Miocene rocks have only been recognized in the south-east of the 

 island. The Pliocene strata lie in horizontal or slightly inclined 

 beds, resting unconformably upon all older rocks. The Pleistocene 

 rocks comprise : (1) Littoral limestones and pebble-beds, (2) soft 

 shelly sands, (3) inland surface-conglomerates, (4) cave-earths, and 

 (5) alluvial deposits. The cave-earths have yielded Hippopotamus 

 minutus and Elephas Cypriotes to Miss D. M. Bate. An account 

 of the chief economic mineral products of the island is given, 

 including the marbles, clays, limestones, gypsum, building- and 

 paving - stones, road - metals, metalliferous minerals, pozzuolana, 

 terre - verte ; and a note on the springs, salt lakes, and soils. 

 Descriptions of some of the rocks, a note on the Miocene rocks, 

 and a sketch of the physical history of the island are contributed 

 by Mr. Jukes-Browne. 



IIL— January 18th, 1905.— J. E. Marr, Sc.D., F.R.S., President, in 

 the Chair. The following communication was read : — 



" On the Geology of Arenig Fawr and Moel Llyfnant." By 

 William George Fearnsides, M.A., F.G.S. 



This paper contains a detailed description of the succession of 

 beds in Sedgwick's typical ai-ea of development of his Arenig 

 Series. The following beds are described : — 



Orthis limestone. 



Thin ashy shales. 



Upper ashes of Arenig and Llyfnant. 



Dalfawr shales, with graptolites apparently of the Didi/mof/raptus Miirchisoni zone. 



Upper platy ashes, passing down into : — 



Agglomerate. 



Lower platy ashes. 



