Has photographs of September 23 . Desires half pictures 'with the sun's limb in the middle of the view.' Cannot yet draw conclusions about the notches of the limb.
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Has photographs of September 23 . Desires half pictures 'with the sun's limb in the middle of the view.' Cannot yet draw conclusions about the notches of the limb.
Discusses a depression on a heliograph, which he cannot reconcile with [Frederick] Howlett's observations. Conjectures over-exposure in printing may be the culprit.
Sending autographs. Discusses the faculae on the eastern limb and the reception of JH's note at the R.A.S. [Frederick] Howlett is drawing a group of sunspots.
Discusses problems with darkness on solar autographs and also the appearance of a white spot or 'ghost.' Cannot explain the 'notch' in the Aug. 4 autographs.
Will send requested half pictures. Notes that the 'ghost' always appears in the center of the plate. Discusses position lines and notches.