This book reevaluates the changes to chymistry that took place from 1660 to 1730 through a close study of the chymist Wilhelm Homberg (1653–1715) and the changing fortunes of his discipline at the Académie Royale des Sciences, France’s official scientific body. By charting Homberg’s remarkable life from Java to France’s royal court, and his endeavor to create a comprehensive theory of chymistry (including alchemical transmutation), Lawrence M. Principe reveals the period’s significance and reassesses its place in the broader sweep of the history of science. Principe, the leading authority on the subject, recounts how Homberg’s radical vision promoted chymistry as the most powerful and reliable means of understanding the natural world. Homberg’s work at the Académie and in collaboration with the future regent, Philippe II d’Orléans, as revealed by a wealth of newly uncovered documents, provides surprising new insights into the broader changes chymistry underwent during, and immediately after, Homberg. A human, disciplinary, and institutional biography, The Transmutations of Chymistry significantly revises what was previously known about the contours of chymistry and scientific institutions in the early eighteenth century.
Why should the gene be suggested to be inconstant when the contrary view, that gene structure is invariant except through mutagenic processes induced by potent external factors, has long been a universal doctrine of genetics? Indeed, during the early part of the present century before mutation was recognized as being of general occurrence, the seeming unvarying nature of the gene led to skepticism regarding the validity of the evolutionary theory; only later could the origins of the morphological differences between individuals and species be attributed to a combination of mutation and evolution, involving natural forces selecting between favorable and unfavorable genetic changes. But during the past several decades, as knowledge of the macromolecular constitution of or ganisms has increased to the point where even the primary structures of the genes themselves are being revealed on a routine basis, it has become increas ingly difficult to ascribe all the resulting observations to ordinary mutagenesis and natural selection. Some more profound mechanism often seems to be present that influences both the constancy and inconstancy of the genes, an ap paratus whose existence this study hopes to reveal. In seeking to demonstrate the universality of this mechanism, data are sought through the numerous activities of organisms of many types wherever gene action changes are manifest.
This will help us customize your experience to showcase the most relevant content to your age group
Please select from below
Login
Not registered?
Sign up
Already registered?
Success – Your message will goes here
We'd love to hear from you!
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.