This early drawing of Stonehenge demonstrates the versatility of red chalk. Because of its natural hardness, red chalk was often used for creating fine and uniform lines, such as those in the shadows in the lower right foreground. However, the parallel lines of the outlines and shadows within the stones are darker, denser and softer around the edges. This suggests that Gyles wetted the chalk prior to application. The more solid shading within the stones was probably achieved by applying a wet brush over the chalk.