I. A discourse upon the usefulness of the silk of spiders. by Monsieur Bon, President of the Court of Accounts, Aydes and Finances, and President of the Royal Society of Science at Montpellier. Communicated by the Author

Abstract

Abstract Next to the Principal care which all men owe to their more necessary and essential Duties, Whether they relate to their own Imployments, or respect themselves or other People;