| Description | Monthly tables of comparisons of change between the mean daily horizontal and vertical intensities and sets of values including columns for: changes in mean monthly intensity in angular space, mean montly horizontal and vertical intensities, intensities suppoosed =1, daily change in declination from mean position of magnetic axis, change in declination East from mean of the month, and change in declination from mean of the month. With a table for changes of the mean hourly values of horizontal and vertical intensity during the month, absolute determinations.
Each monthly sheet is headed: 'Changes of Horizontal and Vertical Intensity during the month of....' [month and year added] and signed by C.M. Elliot. |