IV.—The Volcanic History of Ireland

Edward Hull
1874 Geological Magazine  
205 another independently of their isomorphism-which is not thorough -are nearly always found together. It will be seen that the majority of the minerals examined are species that are most often found in nature forming component parts of igneous rocks, while two rocks of that class are themselves included.
doi:10.1017/s0016756800169493 fatcat:sqawfxd5hneo7e77ealmqxtohq