The newspapers are having a high old time over some English accounts of the discovery that the bladders of a small water plant, Utricularia, will catch small insects, and is therefore dangerous to fish spawn; and Prof. Baird of the Smithsonian Institute is represented as being much alarmed for young fish in the hatcheries by the discovery. Of course Prof. Baird knew all about this long ago, for the discovery was made by Mrs. Mary Treat, of Vineland, New Jersey, years since. There was no occasion for going abroad to learn the news this time.