You might like Left Right Notes on Reflection and Refraction, for Perspective Lectures (Inscription by Turner) Joseph Mallord William Turner c.1808 Notes on Reflection and Refraction, for Perspective Lectures (Inscriptions by Turner) Joseph Mallord William Turner c.1808 Notes on Reflection and Refraction, for Perspective Lectures (Inscriptions by Turner) Joseph Mallord William Turner c.1808 Lecture Diagram: Two Methods for a Cube Joseph Mallord William Turner c.1818–28 Lecture Diagram: Ray of Light Passing through a Small Aperture Joseph Mallord William Turner c.1817–28 Lecture Diagram: Method for a Cube Joseph Mallord William Turner c.1818–28 Lecture Diagram: The Reflection and Refraction of Rays of Light Joseph Mallord William Turner c.1817–28 Lecture Diagram: The Reflection and Refraction of Rays of Light Joseph Mallord William Turner c.1817–28 Lecture Diagram: Perspective Method for a Circle Joseph Mallord William Turner c.1822–8 Lecture Diagram: Reflections on Water Joseph Mallord William Turner c.1823–8 Lecture Diagram: Reflections on Water Joseph Mallord William Turner c.1823–8 Lecture Diagram: Reflections and Refractions in Two Transparent Globes, One Half-Filled with Water Joseph Mallord William Turner c.1810