Scheele also dispatched a letter to Lavoisier on September 30, 1774, that described his discovery of the previously unknown substance, but Lavoisier never acknowledged receiving it (a copy of the letter was found in Scheele's belongings after his death).
Ka Scheele postitas 30. septembril 1774 Lavoisier'le kirja, milles ta kirjeldas, kuidas ta oli avastanud seni aine, kuid Lavoisier ei tunnistanud, et on selle kirja saanud (kirja koopia leiti pärast Scheele surma tema asjade hulgast).