Argument of counsel before the Hon. James Dunlop, chief judge of the Circuit Court of the District of Columbia, in the matter of the appeal of Albertus Larrowe from the decision of Hon. William D. Bishop, commissioner of patents : rejecting his application for a patent for an improvement in self-acting carriage brakes : hearing, February 6, 1860 : counsel for Albertus Larrowe, Thos. H. 'Dodge, Washington, D.C.