- Mai
- 15 Observation d'un météore lent depuis Genève et Paris Luke Howard, Harvey and Darton, J. & A. Arch, Longman, Hatchard, S. Highley & R. Hunter: "Extraordinary Meteor", The Climate of London: Deduced from Meteorological Observations Made in the Metropolis and at various places around it..., Londres, 1833, p. 136.