488 Notices and Extracts from the Minutes of the Geological Soc'ieti/. 



at several points, may be the south-western side of a vast dyke, probably 

 more than 100 yards in thickness ; and that the escarpment of the Hoar Edge 

 may be the north-western side. At the ''machine/' near the village of Corn- 

 brook, the coal is said to have been forced up to the surface, the basalt being- 

 found beneath it. 



In conclusion, the author points out the resemblance between the basalt of 

 the Titterstone Clee Hills and that of Rowley Regis in Staffordshire. He 

 says, that they agree in assuming a columnar structure, and in the inclination 

 of the prisms ; as well as in the hills at both localities being flat-topped, and 

 having their steepest escarpments towards the west. 



3. — On a large Boulder -stone on the Shore of Appin, Argijleshire. Bj/ 

 James Maxwell, Esq.; and communicated bij William Smith, Esq., F.G.S. 

 [Read May 30th, 1832.] 



This boulder-stone consists of a granitic compound of quartz, felspar, and 

 mica, the last mineral being the principal ingredient. Its form is irregular, 

 but the angles have been rounded. The greatest vertical circumference is 

 forty-two feet, and the greatest horizontal, thirty-eight feet. It is supported 

 on three stones, each about six inches thick; one of them being a granite, of 

 a paler colour than that of which the boulder consists, and the other two 

 being composed of argillaceous ironstone; while the formation on which they 

 rest is a slaty calcareous sandstone. Numerous other granitic boulders occur 

 in this part of Scotland, but there is no rock in situ from which they could 

 have been derived. 



4. — On the occurrence of Bones in a Coal-mine near Gratz in Sti/ria. By 

 Professor Anker, of the Joanneum in Gratz : communicated by Roderick 

 Impey Murchison, Esq., F.G.S. [Read February 27th, 1833.] 



The bones referred to by the author were found in a range of hills, ex- 

 tending in a southerly direction from the foot of the Schvvamberg mountains 

 to Scheineck on the Weiss. The hills consist of molasse, alternating with 

 beds of brown coal from 2 to 2\ feet in thickness, and distinguishable from 

 black coal only by geological position, and the occasional occurrence of woody 

 texture. Associated with the coal are beds of bituminous shale, and a grey, 

 bituminous, marly, slaty sandstone, in which are occasionally interspersed 

 pebbles of primary rocks. 



