Letter from W. Wenckebach, Professor at the University of Utrecht, Utrecht, to [Lieutenant-Colonel Edward Sabine], Foreign Secretary of the Royal Society Requesting the 'Greenwich Observations' of the Society to be sent directly to him, as there never was a proper Observatory at Breda and any resulting observations made there were a consequence of Wenckebach's personal ambition and work. [Affirmative response from Sabine on 12 October 1846.] 30 July 1846