* In the valley of the Nith and its tributary the Carton Water, among the high grounds of Dumfrieshire, necks belonging to the Permian series of volcanoes occur. At the head of Lauderdale, Mr. B. N. Peach has observed a small neck coming through the Upper Old Red conglomerate, and possibly connected with the volcanic action in which the Berwickahire and Roxburghshire porphyritee were erupted. But in theso cases the orifices have heen opened in deep valleys among the hills. [Since this was written, Mr. Prach has met with a number of volcanic necks of Lower Carboniferous age in valleys of the Silurian uplands of Roxburghshire, extending to a distance of at ]east 10 miles from the edge of the lava-sheet.]