Tractatus Collection

Cinnamon seller. Illustration from Tractatus
" Cinnamon seller. Illustration from " Tractatus de herbis", edition of " De Materia Medica" from 15th century. Gothic art. Miniature Painting. ITALY. Modena

Looking for sulphur near a volcano. Illustration from Tractatus de Herbis, 15th c. from De Materia Medica by Dioscorides. Gothic art. Miniature Painting. ITALY. EMILIA-ROMAGNA. Modena. Estense Library

Glass blower. Illustration of Tractatus de Herbis, 15 c. of the work De Materia Medica. Gothic art. Miniature Painting. ITALY. EMILIA-ROMAGNA. Modena. Estense Library

Descartes idea of vision, showing passage of nervous impulse from the eye to the pineal gland and so to the muscles. From Rene Descartes Opera Philosophica, 1692 (Tractatus de homine). Woodcut

Ludovic Meets the Four Witches from Visio Ludovici de Francia (the Vision of Louis of France) at the Tractatus de Purgatorio Sancti Patricii (Purgatory of Saint Patrick), 14th c. Gothic art

VILANOVA, Arnau de (1238-1311). Alchemist, astrologer and physician of Catalan origin who had a great reputation in the medieval world

Title page for: Reinier de Graaf, Tractatus Anatomico-Paramedic succinate pancreatici kind & usu, Leiden, 1671, officina Hackiana, 1671

Descartes model of the antagonistic eye muscles A, E. When E is relaxed A is ennervated. Descartes believed that an animal spirit travelling down hollow nerves C, B

Descartes illustration of the co-ordination of the senses. Visual stimulus travelling from the eye to the pineal gland, H, stops attention being given to olfactory stimulus

Descartes illustration of how distance of object is perceived with binocular vision. From Rene Descartes Opera Philosophica, 1692 (Tractatus de homine) Woodcut

Jan Swammerdam (1637-1680) Dutch naturalist. Frontispiece of his Tractatus de Respiratione (1667) showing some of the experiments described in the text

Distilling alcohol. Illustration from Tractatus
" Distilling alcohol. Illustration from " Tractatus de herbis", edition from 15th century of the work " De Materia Medica". Gothic art. Miniature Painting. ITALY. Modena

Dioscorides, Pedanius (40-c. 70). Picking honey
" Dioscorides, Pedanius (40-c.70). Picking honey. Picture of " Tractatus de herbis", edition of 15th c. of the work " De Materia Medica" by Pedanius Dioscorides (fol 92r.)

Dioscorides, Pedanius (40-c. 70). The beaver hunting
" Dioscorides, Pedanius (40-c.70). The beaver hunting. Illustration of " Tractatus de herbis", edition of the 15th c

Nutmeg. Illustration from Tractatus de herbis
" Nutmeg. Illustration from " Tractatus de herbis", edition of " De Materia Medica" from 15th century. Page 98v. Gothic art. Miniature Painting. ITALY. Modena

Weighting camphor. Illustration from Tractatus
" Weighting camphor. Illustration from " Tractatus de herbis", edition of " De Materia Medica" from 15th century. Gothic art. Miniature Painting. ITALY. Modena

Tractatus de Pestilencia by M. Albik. Application of vegetable dressings. Gothic art. Miniature Painting

DECIANUS (1508-1581)
TIBERIUS DECIANUS Author of Tractatus Criminalis

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Tractatus: A Journey Through Time and Knowledge Step into the captivating world of Tractatus, where ancient wisdom intertwines with scientific exploration. This collection of illustrations takes us on a mesmerizing journey through various realms of knowledge, revealing the intricate tapestry that connects humanity's pursuit of understanding. In one image, we find ourselves amidst the bustling streets as a cinnamon seller entices passersby with his aromatic wares. The illustration from Tractatus transports us to distant lands, evoking the allure and richness of trade routes long ago. Venturing further into this extraordinary compilation, we encounter an intrepid explorer in search of sulphur near a volcano. The vibrant depiction captures both the perilous nature of such quests and the insatiable curiosity that drives mankind to unravel Earth's mysteries. Turning another page reveals a masterful glass blower at work – an artisan who skillfully transforms molten material into delicate creations. This illustration from Tractatus de Herbis showcases not only human ingenuity but also our profound connection to craftsmanship and creativity. As Ludovic meets four witches in Visio Ludovici, we are transported to realms beyond our own reality. These enchanting encounters remind us that there is more to existence than what meets the eye – hidden dimensions waiting for those brave enough to explore them. The pages unfold further, introducing Arnau de Vilanova – alchemist and astrologer extraordinaire. His presence reminds us of humanity's relentless pursuit for enlightenment through unconventional means; pushing boundaries in search of answers yet unknown. Reinier de Graaf's title page beckons us towards anatomical exploration - unveiling secrets concealed within our very bodies. With each turn, Descartes' vision unfolds before our eyes: nerve impulses traveling from eye to pineal gland; antagonistic eye muscles coordinating effortlessly; binocular vision perceiving distance with precision. Jan Swammerdam's frontispiece invites us into the realm of nature, where respiration becomes a symphony of life.