Palmistry

"The Map of the Hand" from Practical Palmistry (Chicago: Laird & Lee, 1897), a handbook credited to Comte de Saint Germain.

"Sivartha Chart of the Hand" from Science of Palmistry (Tacoma, Wash.: Irene Smith, 1901).

Palmistry, also known as chiromancy (from the Greek: χείρ, kheír ["hand"] + -μαντεία, manteia ["divination, soothsaying"]) or chirology (-λογία, -logia, "study of"), is the art and study of palm reading, the analysis of the lines of the palm of a subject's hand to determine their character or predict their future. It has been practiced across cultures since antiquity throughout Europe, Africa, and Asia.

Reading

• D'Arpentigny, C. S.; Heron-Allen, Ed. (trans.) (1886), The Science of the Hand: or, The Art of Recognizing the Tendencies of the Human Mind by the Observation of the Formations of the Hands, London: Ward, Lock, and Co., https://archive.org/details/b21974214  — originally published in French as La Science de la Main in 1843.
• de Saint Germain, C. (1897), Practical Palmistry; or, Hand Reading Simplified, Chicago: Laird & Lee, https://archive.org/details/practicalpalmist00sain 
• Neal, E. Virgil (1901), Chirology: or, The Scientific Study of Character from the Hand, New York: Columbia Scientific Academy 
• Smith, Irene M. (1901), The Science of Palmistry and Its Relations to Astrology and Phrenology, Tacoma, Wash.: Irene Smith, https://archive.org/details/scienceofpalmist00smit 
• La Seer, Elmo Jean (1904), Illustrated Palmistry: the Science of the Hand & Its Lines, New York: J.S. Ogilvie