You might like Left Right Perspective Diagrams, after Salomon de Caus Joseph Mallord William Turner c.1809 Diagrams of Harmonic Proportions, after John Hamilton Joseph Mallord William Turner c.1809 Diagram of the Geometry of a Parabola, after John Hamilton Joseph Mallord William Turner c.1809 Diagram of a Perspective Method for a Cube, after Pietro Accolti Joseph Mallord William Turner c.1809 Diagram of a Cuboid in Perspective, after Jean Cousin Joseph Mallord William Turner c.1809 Geometrical Diagram, after Heinrich Lautensack Joseph Mallord William Turner c.1809 Diagram of a Boat on Water with the Sun’s Reflection Joseph Mallord William Turner c.1809 Perspective Diagrams, after Pietro Accolti Joseph Mallord William Turner c.1809 Perspective Diagram, from an Unidentified Source Joseph Mallord William Turner c.1809 Diagram and Notes on Perspective (Inscriptions by Turner) Joseph Mallord William Turner 1809 Lecture Diagram 17: Principles of Rectilinear Perspective (after Thomas Malton Senior) Joseph Mallord William Turner c.1810 Lecture Diagram 22: Geometry of the Parabola (after John Hamilton) Joseph Mallord William Turner c.1810