Mr. John Williamson the well known botanist of Louisville, is also famous in art. The Kentucky papers speak in high praise of some etched plaques of brass on exhibition, in which the ferns and other plants are so accurately engraved, that any botanist can tell the species. The Courier Journal remarks that Mr. Williamson has " reason to be proud of this unique and beautiful piece of work." On the birthday of Burns, a festival given by the St-Andrews Society, Mr. Williamson also made the great speech of the evening, in which he showed that the art of poetry had a well furnished home in his breast, as well as science.