The new custom house at Havana--Singular story of the building--Mr. R. M. ignores the action of the house in Texas--He prevails on me to make another trip--Great excitement in blockade running--Steamers _versus_ sailing vessels--Their respective merits compared--Havana and its institutions--Officials--Pensioners--Poor--Criminals-- Lotteries--Captain Flagg and the _Bilateria_--Jim Hyland turns up--His wife desires to be present when he is paid off--Loaded for another voyage