As I could not give in this paper anything like a full account of my observations and the results of my studies concerning this question made during an expedition through Iceland in the summer of 1908, I must refer the reader to my special papers on this subject. Everyone will find there the reasons which have induced me first to suppose the independence of the so-called ‘Schild’ volcanoes in Iceland of pre-existing fissures. This idea is confirmed by collecting proof after proof on the subject in the field during my researches. Naturally I could not give all the details in a first short preliminary communication, a fact which, I am sorry to say, has caused Professor Schwarz to doubt the correctness of part of my observations and conclusions. I may therefore be allowed to discuss shortly the two main objections of Professor Schwarz to my theory.
page 59 note 1 Reck, Hans, “Ein Beitrag zur Spaltenfrage der Vulkane”: Centralbl. f. Min., Geol., u. Palaeont., 1910, No. 6, pp. 166–9, 1 fig.Google Scholar “Ueber Erhelbungskratere”: Monatsberichten, A. d. d. Deutschen Geol. Ges., Bd. lxii, No. 4, pp. 295–319, 9 figs., 1910.Google Scholar “Isländische Masseneruptionen”: Kokens geol.-palaeontolog. Abhandlungen, Heft ii (Bd. ix der neuen Folge), pp. 80–186, 9 plates, 1910.Google Scholar “Das vulkanische Horstgebirge Dyngjufjöll mit den Einbruchskalderen der Askja und des Knebelsees sowie dem Rudloffkrater in Zentralisland”: Abhandlungen der Königl. Press. Akademie der Wissenschaften vom Jahre 1910, pp. 1–100, 8 plates.Google Scholar
page 59 note 2 See Geol. Mag., 09, 1910, p. 392.Google Scholar
page 61 note 1 Compare also Pjeturss, Helgi, Zeitschrift der Gesellschaft f. Erdkunde, 1908, pp. 451 ff.Google Scholar