. "Fluctuations of declination at Kew and Stonyhurst" . . . "Preliminary results of a comparison of certain simultaneous fluctuations of the declination at Kew and at Stonyhurst during the Years 1883 and 1884, as recorded by the magnetographs at these observatoires" . . "Observations" . . . . . . . . . "Stonyhurst College. Observatory." . . . .