Lord Rosse's Great Telescope.
XV.
STELLAR GROUPING.
At the same time that recent observation has dispelled the nebulous matter, from which worlds were supposed to be formed, it has opened up wondrous views of sidereal grouping. The telescope of Lord Rosse has converted the atoms of nebulous matter into suns, and instead of molecular condensation, we must deal with stellar aggregation. The nebulæ which were indicated, as shewing progressive con-
