The Quarterly Journal of the Geological Society of London, v. 39 (1883), London, geology, periodicals, This illustration features a detailed geological cross-section of the Horsehead Cliff, documenting the stratigraphy from the top of the Lower Helderberg Belt to the base of the Upper Regimental Sandstone. It presents a systematic representation of various geological layers, each identified by numeric labels, along with descriptions of their composition and characteristics. The chart showcases a variety of rock types, including limestone, shale, and sandstone, organized in a manner that highlights the geological history and structure of the area. The legend provides explanations of the symbols used throughout the section, aiding in the interpretation of the geological features presented. This comprehensive study serves as an important reference for understanding the geological formations and their historical development.