Speaking of the report a week ago from the Cincinnati observatory that the nucleus cornet had divided into two, the director of the Dudley observatory says that he has always found the nucleus or central cone of of the cornet single, and generally sharp in outline. There is from time totime evidence of great disturbance in the head of the cornet; but nothing like a separation of the nucleus into two distinct cometa has taken place. The nucleus 8eems to be spouting up great jeti of cometary matter by a forcé of expulsión suflicient to carry the particles tens of thousands of miles from the starting point. Then those partióles seem to be caught up by a counter force of repulsión, emanating from the sun, wbieh sweepa them back millions of miles from the head of the cornet and tlius forms the tail. These jets as they issue from the nucleus assunie every conceivable forra. Sometimes tliey appear like the outstretched wings of a great bird; at others like a fountain ■vrith numerous curviug sprays. Sometiines the tremendoua forces which produce the appearances described appear to be comparatively quiescent, andtlien the cometary matter hovers over the nucleus in a great semi-circular cloud or envelope on the side nearest the sun. The Cincinnati astrononiers must hare wttnessed an unusually violent outburst from the head of the cornet. This outburst would have appeared as a brilliant streak of cometary matter issuing from the nucleus, and this streak or jet might have terminated in a brilliant cloud-like expansión which could easily have been mistaken for a separation.