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ever, the graywacke comes in, having been brought up by a mass 
of trap. 
Section 2. Radnitz to Rakonitz—The direction of this section 
is nearly 8S. and N., Radnitz bemg about 12 miles east of Pilsen, 
and Rakonitz 20 miles east of Luditz. Radnitz stands upon an in- 
conerent coal measure sandstone ; and two bands of coal are worked 
a little south of the town. Beyond the sandstone rises a hill of 
graywacke shale, protruded, Mr. Ansted believes, by the agency of 
a mass of trap visible a short way off. ‘To the north of Radnitz is 
an abrupt hill of the shale, considered to have been also brought up 
by a fault; and on its northern face commences a broad valley 
formed of coal measures, and bounded at its further extremity by 
another hill of graywacke, likewise thrown up by a fault. Coal is 
worked on three sides of this hill. The graywacke continues thence 
for six or seven miles, when the coal sandstone again constitutes 
the surface for a short distance (2 miles), and, after another interval 
occupied by graywacke, reappears forming the country around Ra- 
konitz. 
Section 3. Zebrak to Ginetz.— This section refers to a more 
southerly part of the district, and traverses a portion of the coal 
measures situated south of that line of graywacke which extends from 
Pilsen to Prague, and separates, except at one point, the coal field 
connected with the two first sections, from the district about to be 
noticed. At Zebrak, the pomt just mentioned, the coal measures 
intersect the graywacke range, in consequence apparently of a fault ; 
and the section commences at Zebrak in graywacke shale near 
the junction of the coal measures with the graywacke. These shales 
extend to Horzowitz, where they are overlaid unconformably by the 
coal sandstone, which constitutes the surface of the country for 
about two miles. At that point is a hill, on the summit of which 
occurs a cherty sandstone considered by Mr. Ansted to be the base 
of the coal measures and to have been forced up into its present 
position. ‘The beds dip about 60° S. E., and rest apparently upon 
a very coarse, hard, red conglomerate, to which succeeds a vast de- 
velopment of shale, containing occasionally ‘Trilobites. This divi- 
sion of the graywacke series, is at some distance, covered again by 
the conglomerate upon a change of dip, and then continues nearly 
three miles to Ginetz, with the strata moderately inclined to the 
N.E. At that town a band of limestone cccurs reported to be rich 
in Trilobites. 
Section 4. Przilep to Karlstein.—This section is parallel to the 
last and crosses the line of country between Pilsen and Prague. 
Two or three tolerably thick beds of coal are worked near Przilep 
and supply Prague with fuel. Fossils also are not deficient. About 
6 miles towards the north-west, other but inferior beds of coal are 
wrought ; but towards the east, the coal thins out between lofty pre- 
cipices of shale, which form a narrow gorge. Pursuing the line of 
section towards the south-east, the direction of the dip, and at no 
great distance from Przilep, the coal basin is shut in by the steep 
