Ethnoregionalist movements across Western Europe are gaining scholarly attention. Central European states usually have limited places in those studies. Still, in Polish Upper Silesia, ethnoregionalist movements have been present since 1989 and have stable support from the inhabitants of the region. Since at least 2002, ethnoregionalists have attempted to secure political representation among the Upper Silesians. Recently registered parties have used the ethnic identity of this minority group as the main tool to gain support in political elections in the region. This article applies social science and political science perspectives to the politicization of ethnicity. These equip the researcher to answer the question: How has Silesian ethnic identity become politicized? In responding, the researcher explores the consequences of the emergence of the ethnoregionalist movement in Upper Silesia.

Ethnoregionalism in Europe is a phenomenon usually studied in the context of Western Europe. Still, in Central and Eastern Europe, there are some social and political movements that can be categorized as ethnoregionalist. The phenomenon started to play a role even before the Great War and in the interwar period, but was suppressed during the times of socialist regimes. It resurfaced immediately after 1989 during the times of transformation of political systems to fully democratic systems when problems of decentralization, authority, and division of power became openly discussed. In this article, I compare two such movements in the context of their political potential. The Moravian-Silesian movement in the Czech Republic and the Silesian movement in Poland have both similarities and differences, but the article mostly focuses on the evolution of these movements.

The tropospheric dust loading in Upper Silesia (Poland) shows a steady, annually averaged supply of minerals from natural and anthropogenic sources, industrial dust emitters, domestic heating, transportation, but with superimposed seasonal changes for some dust types. Samples of airborne and deposited particles were collected at monthly intervals between 1996 and 2001 in several cities of Upper Silesia. Dust samples were examined by X-ray powder diffraction, analytical transmission electron microscopy, analytical scanning electron microscopy, and electron microprobe microanalysis. The most common dust included quartz, gypsum, coke, soot, hematite, magnetite, wüstite, bassanite, graphite and various K-, Fe- and Mg-bearing aluminosilicates, in order of decreasing abundance. Minor phases included α-iron, sulphur, sphalerite, halite, sylvite, hercynite, franklinite, baryte, dolomite, ankerite, apatite, olivine and feldspars. Quartz, and specific industrial minerals, e.g. spinels, sphalerite, olivine and iron, occurred throughout the year in almost constant abundances. The amounts of all other dust components show seasonal variations; gypsum, baryte and other sulphates are particularly abundant in winter. In general, minerals related to low-emission sources are abundant in the winter time, while both natural dusts and dust from high-emission sources are predominant during the summer.

The article explains the current structure of Körber's herbarium, located in the Nationaal Herbarium Nederland, Leiden (L). Originally, Körber's herbarium was composed of two separate collections. One part, Koerber Typenherbar, represents well-developed samples of each species, but they are in fact often fragments of specimens from the main collection (Koerber Stammherbar). Several examples are presented which demonstrate the relationship between both parts of the collection, various origins of specimens in the Koerber Typenherbar and their importance for lectotypification. Some specimens in Körber's herbarium were labelled only with an abbreviation or a symbol instead of a locality. All abbreviations/symbols with their explanations, kept in the Leiden herbarium archive, are listed here with information on the current names of the sampling localities in Poland and the Czech Republic.