The third and the other two volumes offer the scientific community the works and thoughts of Santiago Ramón y Cajal by the faithful rendition of the original Spanish version of the Texture of the Nervous System of Man and the Vertebrates (1899–1904), with additional facts contained in the French translation (1909–1911). These non-English versions are being quoted an average of 200 times yearly in the scientific literature. The collection will represent the "definitive Cajal” to be used by scientists and scholars interested in the original thoughts of probably the most prominent neuroscientist of all times. In sum, the collection represents the "definitive Cajal” to be used by scientists and scholars interested in the original writings of probably the most prominent neuroscientist of all times.