Note 173 — Chapter XXXIV · THE SYSTEM OF DYKES IN THE TERTIARY VOLCANIC SERIES
Reading edition
On this subject see a paper by Dr. A. Lagorio, "Über die Natur der Glasbasis sowie der Krystallisationsvorgänge im eruptiven Magma," Tschermak's Mineralog. Mittheil. viii. (1887), p. 421.
[174] Mr. J. S. Grant Wilson, Proc. Roy. Soc. Phys. Edin. v. (1880) p. 253.
[175] Unpublished analyses made by the late Professor Dittmar of Glasgow, and communicated to me by Mr. Clough.