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ABSTRACT January 7, 1786. Jean Etienne Guettard died.—The discoverer in 1752 of the extinct volcanoes of Auvergne and the compiler with Lavoisier of a mineralogical map of France, Guettard
has been called “the father of all the national Geological Surveys.” Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution
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about institutional subscriptions * Read our FAQs * Contact customer support CHANGE HISTORY * _ 01 JANUARY 1921 In last week's Calendar the year of Galileo's birth should have been
1564, and not 1571_l_ which was the year Kepler was born. _ Authors * E. C. S. View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS
Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE S., E. Calendar of Scientific Pioneers. _Nature_ 106, 617 (1921). https://doi.org/10.1038/106617a0 Download citation * Issue
Date: 06 January 1921 * DOI: https://doi.org/10.1038/106617a0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a
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