W. Prinz. L’éruption du Vesuv d’avril, 1906, Ciel et Terre, 27e Année, 1906, pp. 1-49.
Frank A. Perret. Notes on the Electrical Phenomena of the Vesuvian Eruption, April, 1906, Sci. Bull., Brooklyn Inst. Arts and Sci., vol. 1, No. 11, pp. 307-312; Vesuvius, Characteristics and Phenomena of the Present Repose Period, Am. Jour. Sci., vol. 28, 1909, pp. 413-430.
William H. Hobbs. The Grand Eruption of Vesuvius in 1906, Jour. Geol., vol. 14, 1906, pp. 636-655.
The spine of Pelée:—
E. O. Hovey. The New Cone of Mont Pelée and the Gorge of the Rivière Blanche, Martinique, Am. Jour. Sci., vol. 16, 1903, pp. 269-281, pls. 11-14.
A. Heilprin. The Tower of Pelée. Philadelphia, 1904, pp. 62, pls. 22.
A. Lacroix. La montagne Pelée et ses éruptions, Acad. des Sciences, Paris, 1904, Chapter iii.
Karl Sapper. In den Vulkangebieten Mittelamerikas und Westindiens, Stuttgart, 1905, pp. 172-178.
A. C. Lane. Absorbed Gases of Vulcanism, Science, N.S., vol. 18, 1903, p. 760.
G. K. Gilbert. The Mechanism of the Mont Pelée Spine, ibid., vol. 19, 1904, pp. 927-928.