This plate illustrates various surveying levels and instruments, each labeled with a figure number: Fig. 1: A spirit level with a curved vial and adjustment screws. Fig. 2: A long spirit level with a leveling screw and a small cylindrical component. Fig. 3: A leveling instrument with a vertical scale and a float in a container. Fig. 4: A leveling instrument with a vertical column and a base. Fig. 5: A leveling instrument with a vertical column and a base. Fig. 6: A leveling instrument with a vertical column and a base. Fig. 7: A leveling instrument with a vertical column and a base. Fig. 8: A leveling instrument with a vertical column and a base. Fig. 9: A leveling instrument with a vertical column and a base. Fig. 10: A leveling instrument with a vertical column and a base. Fig. 11: A leveling instrument with a vertical column and a base. Fig. 12: A leveling instrument with a vertical column and a base. Fig. 13: A leveling instrument with a vertical column and a base. Fig. 14: A leveling instrument with a vertical column and a base. [Faint, illegible text block] [Faint, illegible text block] [Faint, illegible text block] [Faint, illegible text block] Fig. 1. Fig. 2. Fig. 3. Fig. 4. Fig. 5. Bottom Diagram: A perspective view of a leveling instrument. It consists of a cylindrical base with points C, D, M, N, V, V. A vertical support with points E, F, N is mounted on top. A horizontal tube with points A, B, M is attached to the support. Fig. 1. Fig. 5. Fig. 8.