Letter, from Guglielmo Libri Carucci dalla Sommaja to Augustus De Morgan, dated at 2 Bloomsbury Square, London Autograph letter signed by sender. Regarding the affair with [Michel] Chasles, whom Libri accuses to have led a campaign in print against him in the Comptes Rendus de l'Academie des Sciences and have prevented him to be elected. Exchanges on Newton and his mother [Hannah] Ayscough Newton. Mentions the possible Pascal forgery. Has sent a printed letter to Forbes and Brewster. 7 September 1867