GENERAL REPORT OF THE JUDGES OF GROUP XIX. International Exhibition, Philadelphia, 1876. Prof. F. A. Walker, Chief of Bureati of Awards: Sir,—In accordance with your request, I have the honor to submit a report on the exhibits that appear to me to deserve special notice in Group XIX., of which section I was one of the Judges and Chairman. I have the honor to be, sir, your obedient servant, F. H. RICH, Col. R. E., Chairman of Group XIX.