1 février 1755 (1) : Watson (London) écrit à la Royal Society :
I lately acquainted the Royal Society, that I had some doubts, arising from the pieces I had seen, whether the agaric sent from France. […] I wrote to our worthy M. Clairaut of Paris to lay some queries I drew up before M. Bernard de Jussieu ans M. Morand, both members of the Royal Society, and excellent juges of this subject. M. Clairaut, since our last meeting, has been so kind as to transmit to me their answer. (Watson 55-56).
Référence
Watson (William), « An Account of the Species of Plant, from Which the Agaric, Used as a Styptic, is Prepared. By Mr. William Watson, F. R. S. », Philosophical Transactions, 49 (1755-1756) 28-29 [Télécharger].
Courcelle (Olivier), « 1 février 1755 (1) : Watson (London) écrit à la Royal Society », Chronologie de la vie de Clairaut (1713-1765) [En ligne], http://www.clairaut.com/n1fevrier1755po1pf.html [Notice publiée le 13 août 2011].
