Summa Perfectionis

The present work contains a critical edition, translation, and study of the Summa perfectionis of Pseudo-Geber, the most influential of the many texts of medieval alchemy. The study addresses such questions as the author's identity, his corpuscular theory of matter, the influence of the Summa, and its own sources.

The present work contains a critical edition, translation, and study of the "Summa perfectionis" of Pseudo-Geber, the most influential of the many texts of medieval alchemy. The study addresses such questions as the author's identity, his corpuscular theory of matter, the influence of the "Summa," and its own sources.

In September 2008, an international conference on the history of alchemy was held at El Escorial, close to the ancient location of the distilling houses operating under royal patronage during the second half of the 16th century. The present book consists of a selection of the papers presented then, shedding light on little-studied medieval and early modern texts, important alchemical doctrines such as medieval corpuscularianism, early modern spiritus mundi or the function of salt within chymical principles, and discussing such prominent figures as Paracelsus, Isaac Hollandus, Michael Sendivogius, Fontenelle or G. E. Stahl. Last but not least, the book offers new insights on the most recent history of Spanish alchemy.

Summa Perfectionis, "The Height of Perfection," is attributed to Abu Musa Jabir ibn Hayyan (c. 721-815), who is most commonly known as Geber. This volume was selected by Hans Nintzel for inclusion in the R.A.M.S. Library due to numerous references to the text in major Alchemical works. Whatever the origin, this text has had a strong influence on the study of Alchemy for many centuries.

A history of the book and intellectual property that includes military technology and military secrets. Winner of The Morris D. Forkosch Prize from the Journal of the History of Ideas In today's world of intellectual property disputes, industrial espionage, and book signings by famous authors, one easily loses sight of the historical nature of the attribution and ownership of texts. In Openness, Secrecy, Authorship: Technical Arts and the Culture of Knowledge from Antiquity to the Renaissance, Pamela Long combines intellectual history with the history of science and technology to explore the culture of authorship. Using classical Greek as well as medieval and Renaissance European examples, Long traces the definitions, limitations, and traditions of intellectual and scientific creation and attribution. She examines these attitudes as they pertain to the technical and the practical. Although Long's study follows a chronological development, this is not merely a general work. Long is able to examine events and sources within their historical context and locale. By looking at Aristotelian ideas of Praxis, Techne, and Episteme. She explains the tension between craft and ideas, authors and producers. She discusses, with solid research and clear prose, the rise, wane, and resurgence of priority in the crediting and lionizing of authors. Long illuminates the creation and re-creation of ideas like "trade secrets," "plagiarism," "mechanical arts," and "scribal culture." Her historical study complicates prevailing assumptions while inviting a closer look at issues that define so much of our society and thought to this day. She argues that "a useful working definition of authorship permits a gradation of meaning between the poles of authority and originality," and guides us through the term's nuances with clarity rarely matched in a historical study.

In the middle of the fourteenth century, the Franciscan friar John of Rupescissa sent a dramatic warning to his followers: the end times were coming; the apocalypse was near. Rupescissa's teachings were unique in his era. He claimed that knowledge of the natural world, and alchemy in particular, could act as a defense against the calamity of the last days. He treated alchemy as medicine (his work was the conceptual forerunner of pharmacology), and reflected emerging technologies and views that sought to combat famine, plague, religious persecution, and war. In order to understand scientific knowledge as it is today, Leah DeVun asks that we revisit the Black Death, the Hundred Years' War, and the Avignon Papacy through Rupescissa's eyes. The advances he pioneered, along with the exciting strides made by his contemporaries, shed critical light on future developments in medicine, pharmacology, and chemistry.

Johannes Reuchlin’s Augenspiegel (1511) was a radical political publication aimed to preserve Jewish books from destruction and the consequent loss of irreplaceable knowledge. This first complete and extensively annotated translation provides an insight into the authorities’ attitude to Judaism in Early Modern Germany.