1To John Adams from Martinus Van Marum, July 1805 (Adams Papers)
La societe Batave des sciences desirant d’etre en relation avec les sçavans distingués des Etats...
2From John Adams to Martinus Van Marum, 24 December 1805 (Adams Papers)
I have received the letter you did me the honor to write me in July 1805 inclosing a Diploma by...