TUCKER OFFERED THE COMMAND OF THE PERUVIAN FLEET, WITH THE RANK OF REAR ADMIRAL--ARRIVES IN LIMA--NO PRECEDENT FOR THE RETURN OF MONEY--COMMISSIONED A REAR ADMIRAL IN THE NAVY OF PERU--COMMANDS THE ALLIED FLEETS OF PERU AND CHILE--SPANISH WAR--TUCKER'S PLAN FOR A NAVAL CAMPAIGN; PROJECTED EXPEDITION AGAINST MANILA--CESSATION OF HOSTILITIES--TUCKER RETIRES FROM THE COMMAND OF THE FLEET, AND IS APPOINTED PRESIDENT OF THE PERUVIAN HYDROGRAPHICAL COMMISSION OF THE AMAZON--CROSSES THE ANDES AND REACHES THE AMAZON--EXPLORES THE YAVARI RIVER--ORDERED TO THE UNITED STATES TO SUPERINTEND THE BUILDING OF AN EXPLORING STEAMER--RETURNS TO THE AMAZON WITH STEAMER _Tambo_. EXPEDITION UP THE UCAYALI AND EXPLORATION OF THE TAMBO RIVER--ORDERED TO THE UNITED STATES TO PROCURE A STEAMER OF LIGHT DRAUGHT OF WATER--RETURNS TO THE AMAZON WITH STEAMER _Mairo_--SECOND EXPEDITION UP THE UCAYALI--CANOE EXPEDITION UP THE PACHITEA AND EXPLORATION OF THE PICHIS RIVER--EXPEDITION UP THE AMAZON AND HUALLAGA RIVERS--ORDERED TO LIMA. ORDERED TO NEW YORK TO SUPERINTEND THE CHARTS MADE BY THE HYDROGRAPHICAL COMMISSION--PUBLICATION OF CHARTS ABANDONED ON ACCOUNT OF THE FINANCIAL CONDITION OF PERU--LETTER FROM PRESIDENT PARDO--LETTER FROM MINISTER FREYRE--TUCKER RETIRES TO HIS HOME IN PETERSBURG, VIRGINIA--OCCUPATIONS AND AMUSEMENTS OF OLD AGE--DEATH--CHARACTER AND QUALITIES--CONCLUSION. While residing in Raleigh, North Carolina, Tucker received a letter from the Peruvian Minister to the United States, requesting an interview on affairs of importance. Going to Washington, Tucker saw the Minister, and the result of the interview was that he accepted a proposition to go to Peru and enter the Navy of that Republic as a rear-admiral, his commission to be dated from the time of his arrival at Lima. He was allowed to take with him two staff officers, one with the rank of captain and the other with that of commander.