Comprises: draft titled 'On some instances of Molecular Action' with accompanying letter (Doc no 10029) to Talbot from Edward William Brayley Jnr returning the draft with his comments, Jun 1835 draft paper on solar observations titled 'here, on ye 28th July/51' and 'Obs[ervations] of ye Total Eclipse of ye Sun of ye 28th July/51 made at Marienburg in Prussia by H.F.T.' …