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Portland cement — is the most common type of cement in general usage in many parts of the world, as it is a basic ingredient of concrete, mortar, stucco and most non specialty grout. It is a fine powder produced by Portland cement clinker (more than 90%), a… … Wikipedia
Palaeontology — Palæontology † Catholic Encyclopedia ► Palæontology (logos ton palaion onton) Palæontology, or the science of fossils, deals with extinct or primeval animals and plants. It treats of their characteristics, classification, life and … Catholic encyclopedia
Tullynessle and Forbes — TULLYNESSLE and FORBES, a parish, in the district of Alford, county of Aberdeen, 2½ miles (N. by E.) from Alford; containing 846 inhabitants. The former of these ancient parishes, which were united by act of the General Assembly in 1808,… … A Topographical dictionary of Scotland
Flint — (or flintstone) is a hard, sedimentary cryptocrystalline form of the mineral quartz, [ [http://webmineral.com/data/Quartz.shtml General Quartz Information] Webmineral.com (page contains java applets depicting 3d molecular structure)] [… … Wikipedia
Clondahorky — is a parish situated in Donegal, Republic of Ireland it is in the Diocese of Raphoe. Dunfanaghy is the principal town. History 19th century CLONDEHORKY, a parish, in the barony of KILMACRENAN, county of DONEGAL, and province of ULSTER; containing … Wikipedia

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