Abstract
The steadiness and definition of the Moon and Saturn, both at the beginning and at the end of this interesting phenomenon, were remarkably satisfactory. Long before the calculated time of the disappearance the planet could be well seen in the strong twilight, with the 8 -inch refracting telescope of this observatory ; and a few minutes before the contacts occurred, Titan became visible as a speck of silvery light; it was then a few seconds distant from the planet's north limb. A magnifying power of 74 diameters was employed in all the observations, but the twilight was too strong to admit of the Moon's dark limb being seen. Guided by an approximate calculation furnished by Mr. R. T. A. Innes, F. R. A. S., of Sydney, I succeeded in obtaining the following observations, in local mean time, of the principal phases of the phenomenon : h. m. s. First contact of the western end of the ring . . 5 16 41.8
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