The image shows two diagrams, labeled 'Fig. 3' and 'Fig. 4', on a pale yellow background. Both diagrams depict a cross-section of what appears to be a brain or skull, rendered in a detailed, technical style with fine lines and shading. **Fig. 3** shows a circular view with radiating lines forming a star-like pattern around a central, darker shaded area. A pointed shape extends downwards from the center. **Fig. 4** presents a more three-dimensional view of a similar structure, resembling the inside of a skull. It's a circular view with a darker shaded area representing the brain, and a distinct line outlining the skull's interior. The shading and lines create a sense of depth and curvature.