Eduardo Alvarez made the first criminal fingerprint identification. He was able to identify Francisca Rojas, a woman who murdered her two sons and cut her own throat in an attempt to place blame on another. Her bloody print was left on a door post, proving her identity as the murderer. Alvarez was trained by Juan Vucetich. Sir Francis Galton published his book, "Finger Prints" in 1892, establishing the individuality and permanence of fingerprints. The book included the first published classification system for fingerprints. In 1893, Galton published the book "Decipherment of Blurred Finger Prints," and 1895 the book "Fingerprint Directories." Galton identified the characteristics by which fingerprints can be identified. A few of these same characteristics (minutia) are basically still in use today, and are sometimes referred to as Galton Details.