XI. Measurements of Angles of Basaltic Columns in the Giants' Causeway, County of Antrim; made in 1877
- 1 April 1879
- journal article
- Published by Mineralogical Society in Mineralogical Magazine and Journal of the Mineralogical Society
- Vol. 3 (13) , 101-104
- https://doi.org/10.1180/minmag.1879.003.13.13