^{page 218 note *} Mr Helland's paper has been published since the present memoir was read. See “Om Færoernes Geologi,” in the Danish Geografisk Tidskrift, 1881.

^{page 218 note †} Færoæ et Færoa Reserata, &c, Kiobenhafn, 1673.

^{page 218 note ‡} Forsog til en Beskrivelse over Færoerne, Kiobenhavn, 1800. An English translation of Landt's work appeared in 1810.

^{page 218 note §} “An Account of some Geological Facts observed in the Faröe Islands” (Mackenzie), Trans. Roy. Soc. Edin., vol. vii. p. 213Google Scholar; and “An Account of the Mineralogy of the Faröe Islands” (Allan), op. cit. p. 229.

^{page 219 note *} “On the Mineralogy of the Faröe Islands” Trans. Roy. Soc. Edin., vol. ix. p. 461Google Scholar.

^{page 219 note †} “Om Færöernes geognostiske Beskaffenhed,” Det kongl. danske Vidensk. Selsk. Skrifter, 1824. See also Karsten'S Archiv. für Mineralogie; voL ii. p. 197.

^{page 219 note ‡} Chambers's Edinburgh Journal, 1855.

^{page 220 note *} “Om Kullagene paa Færöerne samt Analyser af de i Danmark og de nordiske Bilande forekommende Kul,” K. D. Vidsk. Selsk. Oversigt, 1873, p. 147.

^{page 220 note †} Since the above was written, I have met with another paper referring to Suderöe, by A. H. Stokes, H.M. Inspector of Mines, in “Trans. Chesterfield and Derbyshire Institute of Mining, Civil, and Mechanical Engineers,” vol. ii. p. 320. The author seems to have examined only the mines and outcrops in the Trangjisvaag district, and he gives the average thickness of the coal seen by him, together with the heights above the sea-level of the various points at which the seam crops. He gives also analyses of the coal. He upholds the submarine origin of the volcanic rocks, and thinks the coal may be the remains of driftwood floated from America.

^{page 220 note ‡} For the spelling of place-names, I have followed the Danish Chart, although the orthography differs from that used in other Danish works. Some of the places I refer to are not given on the chart, and for the spelling of these I am indebted to my colleague Mr Helland. A number of the placenames in Suderöe, I have taken from the map accompanying Professor Johnstrup'S paper.

^{page 221 note *} The height of Slattaretind is given in some Danish geographies which I consulted in the islands, as 2710 feet (Danish) = 2789 feet English; Forchhammer makes it 2816 French feet; and another authority gives it at 882 metres = 2894 English feet. The height adopted in the text is that obtained by Mackenzie and Allan. There is a similar uncertainty as to the exact height of Skiellinge Field; some Danish geographies and gazetteers giving it as 2350 feet = 2418 English feet. The height mentioned above is taken from the Danish Chart, which in Danish feet is 2431 feet or 2502 English feet. This corresponds with the height of 763 mètres given by some -writers.

^{page 223 note *} On an average of several years, there are only forty days in the year on which it does not rain. The annual fall is 78 inches. It is a common belief out of Færöe that the islands are shrouded in fogs during the greater part of the year. This, it seems, is a mistake. We were told by Danes who had resided for some years in the islands, that they had not experienced more mist and fog than in Denmark; and the meteorological records which are kept show that fogs occur on only thirty-nine days in the year. They are worst in the beginning of summer. The best time to visit the islands is from about the end of July to the end of August or middle of September.

^{page 229 note *} According to an old writer (Henschel), whose MSS. are in the Royal Danish Archives, coal is said to occur in Gaasholm and in Waagöe. But it seems this is doubtful (Johnstrup).

^{page 230 note *} Trevelyan says that the coal and clay of Tindholm. are “apparently enclosed in the trap.”

^{page 231 note *} Forchhammer says they sometimes reach an inch in length. This able geologist's geognostic descriptions are in general singularly lucid, and he has given in small compass what seemed to us a perfectly accurate account, so far as it goes, of the principal features presented by the dolerites of these islands.

^{page 237 note *} Quart. Journ. Geol. Soc, vol. xxxiv. p. 854Google Scholar.

^{page 239 note *} Marine fossils are said to occur in the Surtarbrandr or lignite-beds of the sea-coast, near Húsavík in Iceland; but this appears to be exceptional—the palagonite-tuffs of that island being otherwise as destitute of any trace of marine life as those of the Færöes.

^{page 255 note *} The Great Ice Age, p. 289; Quart. Journ. Geol. Soc, vol. xxxiv. p. 861Google Scholar; Trans. Geol. Soc. Glasg., vol. vi. p. 161Google Scholar.

^{page 266 note *} I have elsewhere endeavoured to show that the Færöe Islands were connected with Scotland in post-glacial times. See Prehistoric Europe, p. 518.