Letter from Saloman Moses Drach, London to Edward Sabine Drach thanks Sabine for his ‘kind gift’ of two volumes of the Toronto observations and the simultaneous unusual magnetic disturbances, and for the inclusion of his name in the list of ‘presentees’. Drach remarks on corrections according to his opinion on the volume of the magnetic disturbances. Includes two tables depicting the mean diurnal variation for Toronto and [Tasmania; Lutruwita or Truwana, colonial Van Diemen’s Land] . 6 June 1845