Chapter 26

illustrating Dürer's theories of Proportion. Drawings of a solid octogon. Six coloured drawings of crystals. The description of the Ionic order of architecture. Drawings of columns with measurements. A scale for Human Proportions. A table of contents for a work on Geometry. Notes on perspective, curves, folds, &c. The different kinds of temple after Vitruvius. Mathematical diagrams, &c.