Kerr A. Classic Rock Tours 4. Long Walks, Lost Documents and the Birthplace of Igneous Petrology: Exploring Glen Tilt, Perthshire, Scotland. GS [Internet]. 2020 Jul. 10 [cited 2024 Apr. 25];47(1 and 2):83-102. Available from: https://journals.lib.unb.ca/index.php/GC/article/view/31129