The municipal corporation of Cincinnati have just had constructed for use in extinguishing fires, a steam fire-engine ; and at a public trial of it it has proved entirely successful. It throws six streams ef water by steam power, works constantly, and steam can be generated in five minutes, and kept up without difficulty for any length of time. It is drawn by horses, assisted by the power of the machinery. [Exchange. [Mr. Ericsson constructed such an engine for this city years ago : it is illustrated in Ew-bank's Hydraulics, and there was one illustrated in our last volume.