A story of alchemy in Bohemian Paris, where two scientific outcasts discovered a fundamental distinction between natural and synthetic chemicals that inaugurated an enduring scientific mystery.

For centuries, scientists believed that living matter possessed a special quality—a spirit or essence—that differentiated it from nonliving matter. But by the nineteenth century, the scientific consensus was that the building blocks of one were identical to the building blocks of the other. Elixir tells the story of two young chemists who were not convinced, and how their work rewrote the boundary between life and nonlife.

In the 1830s, Édouard Laugier and Auguste Laurent were working in Laugier Père et Fils, the oldest perfume house in Paris. By day they prepared the perfumery’s revitalizing elixirs and rejuvenating eaux, drawing on alchemical traditions that equated a plant’s vitality with its aroma. In their spare time they hunted the vital force that promised to reveal the secret to life itself. Their ideas, roundly condemned by established chemists, led to the discovery of structural differences between naturally occurring molecules and their synthetic counterparts, even when the molecules were chemically identical.

Scientists still can’t explain this anomaly, but it may point to critical insights concerning the origins of life on Earth. Rich in sparks and smells, brimming with eccentric characters, experimental daring, and the romance of the Bohemian salon, Elixir is a fascinating cultural and scientific history.

As industrial processes have become more automated, there is increasing concern about the performance of the people who control these systems. Human error is increasingly cited as the cause of accidents across many sectors of industry.

A practical, comprehensive resource on the complex behaviors of plastics written expressly for conservation and cultural heritage professionals.
 
Almost every museum in the world is confronted with plastics in their collections. Research initiatives and knowledge concerning the conservation of heritage objects made of plastics have proliferated over the last twenty-five years, necessitating this up-to-date, comprehensive resource. Intended as a highly practical guide for the conservation community, this authoritative book offers information essential to understanding plastics, polymers, and rubber/elastomers and their behaviors in the cultural heritage context. Numerous graphs, diagrams, and illustrations allow readers to compare the mechanical, physical, thermal, and optical properties of these substances during conservation. Aimed at the hands-on museum practitioner, this book will assist professionals in choosing the appropriate methods and materials for preserving and treating plastic objects.
 
Complementing the main chapters, fifty-six illustrated “fact sheets” summarize, at a glance, the properties of those plastics most commonly found in museum collections. Six informative case studies present real-world examples of current conservation approaches to works of art and design made of plastics and rubber/elastomers. Under the expert authorship of Thea B. van Oosten, conservation scientist, educator, and internationally regarded authority on the behavior and properties of plastics, this instructive volume is destined to become an invaluable resource for the field.