James Campbell Irons, Autobiographical Sketch of James Croll, with Memoir of his Life and Work (London: Edward Stanford, 1896), 32. Более подробно о Кролле см.: James Fleming, «James Croll in Context: The Encounter between Climate Dynamics and Geology in the Second Half of the Nineteenth Century,» History of Meteorology 3 (2006): 43–54.
