1869. “Additional Note on the Discovery of Bos primigenius, in the Lower Boulder-clay at Crofthead, near Glasgow,” ibid., vol. vi., pp. 73–5.
1870. “On the Age of the Stratified Deposits, with Mammalian Remains, at Crofthead, near Glasgow,” ibid., vol. vii., pp. 53–7, illus.
1871. “Carboniferous Formation of Scotland” (remarks on Mr Croll’s letter), Trans. Geol. Soc. Glasgow, vol. iv., pp. 78–80; Geol. Mag., vol. vii., 1870, p. 298.
“On Changes of Climate during the Glacial Epoch,” Geol. Mag., vol. viii., pp. 545–53; vol. ix., 1872, pp. 23–31, 61–9, 105–11, 164–70, 215–22, 254–65.
“The Carboniferous Formation of Scotland,” Trans. North Eng. Inst. Min. Engin., vol. xx., pp. 131–57; Trans. Glasgow Inst. Engin., vol. xiv., pp. 5–31.
1872. “A. E. Törnebohm’s Theory of the Origin of the Swedish Asar,” Geol. Mag., vol. ix., pp. 307–9, illus.
“On the Geological Position and Features of the Coal- and Ironstone-bearing Strata of the West of Scotland,” Journ. Iron and Steel Inst., vol. ii., pp. 8–24.
1873. “On the Theory of Seasonal Migrations during the Pleistocene Period,” Geol. Mag., vol. x., pp. 49–54, illus.
“The Antiquity of Man in Britain” (a lecture), Geol. Mag., vol. x., pp. 175–9.