The usual treatment of samples of ancient base silver alloys with nitric acid often leaves residues composed of gold and impure metastannic acid. Silver chloride may also be present in the residues if corroded alloys are being analyzed. Since procedures for the analysis of such complex residues were not included in the usual schemes for the complete analysis of base silver alloys; two such procedures were devised. These were tested on an alloy of known composition and on synthetic mixtures. The test analyses showed that the individual components of the complex residues could be determined with an absolute error not exceeding 0.2 mg. The addition of these procedures to the usual schemes for analyzing base silver alloys now makes possible the complete accurate analysis of ancient base silver alloys. -- AATA