Letter from Edward Sabine, 12 Park Place, to J F W Herschel A further letter on the same subject as his letter of 27 January, (ie that although the main series of observations made at the various 'colonial observatories' are not yet ready to be printed, the 'extra observations' made during disturbances might well be printed and published as a volume by themselves. See MM/11/164). 16 February 1842