The Mount of Saturn lies at the base of the middle finger, and the tradition claims for it seriousness, prudence, solitude, patience and a disposition toward study; an excessive mount is read for gloom and misanthropy and a deficient one for frivolity. The assignment follows the astrological significations of Saturn exactly, which is the pattern throughout the scheme. Chiromancy of this school also reads markings on each mount, a cross, a star, a grille or a triangle, each with its own meaning, so that the interpretive vocabulary multiplies quickly; Desbarrolles and his successors produced elaborate tables of them. The descriptions given here are the tradition's own; they are recorded as what the practice claims, not as findings about hands.
Traditional chiromancy reads a well-developed Mount of Saturn, at the base of the middle finger, as indicating seriousness, prudence, a taste for solitude and a tendency toward introspection or, in excess, melancholy, associations that follow directly from Saturn's own character in classical and medieval astrology as the planet of restriction, discipline and time. An overly flat or underdeveloped Saturn mount is read in the same tradition as indifference or a lack of direction, while an excessively swollen one suggests morbid or fatalistic tendencies. As with every mount in this scheme, the attribution is the tradition's own internal logic, extending planetary character types onto the hand, rather than a claim with any supporting evidence from physiology or from any controlled study of personality.
Sources Les Mysteres de la MainAdolphe Desbarrolles with Introductiones apotelesmaticae elegantes in chyromantiam, physiognomiam, astrologiam naturalem, complexiones hominum, naturas planetarumJohannes ab Indagine (Johannes Rosenbach)