 Boyle’s years in London (from 1668 to his death) saw the continuation of his experimental work, along with a number of works on philosophy and theology, including The Excellency of Theology, Compar’d with Natural Philosophy, Considerations About the Excellency and Grounds of the Mechanical Hypothesis, the Free Enquiry into the Vulgarly Receiv’d Notion of Nature, the Discourse of things above Reason, Disquisition about the Final Causes of Natural Things, and The Christian Virtuoso.