Prohibition of Visits to Vessels at Loanda--Correspondence--Restrictions removed--St. Helena--Appearance of the Island--Reception--Correspondence with the Chief-Justice--Departure. 324 CHAPTER XXX. Return to Loanda--“Cyclops” leaves the Coast--Hon. Captain Hastings--Discussion with the British Commodore in reference to the Visit at St. Helena--Commodore Fanshawe--Arrival at Monrovia--British Cruiser ashore--Arrival at Porto Praya--Wreck of a Hamburgh Ship. 336 CHAPTER XXXI. Return to the South Coast--Comparative Courses and Length of Passage--Country at the Mouth of the Congo--Correspondence with the British Commodore--State of the Slave-Trade--Communication to the Hydrographical Department--Elephants’ Bay--Crew on Shore--Zebras. 344 CHAPTER XXXII. The Condition of the Slave-Trade--Want of suitable Cruisers--Health of the Vessel--Navy Spirit-ration--Portuguese Commodore--French Commodore--Loanda--Letter from Sir George Jackson, British Commissioner, on the State of the Slave-Trade--Return to Porto Praya. 357 CHAPTER XXXIII. Island of Madeira--Porto Grande, Cape Verde Islands--Interference of the British Consul with the “Louisa Beaton”--Porto Praya--Brazilian Brigantine seized by the Authorities--Arrival at New York. 369 CHAPTER XXXIV. Conclusion--Necessity of Squadrons for Protection of Commerce and Citizens abroad--Fever in Brazil, West Indies, and United States--Influence of Recaptured Slaves returning to the different regions of their own Country--Commercial Relations with Africa. 379 [Illustration: _PROBABLE CONFIGURATION_ of AFRICA, _as represented by Contouror Horizontal Planes_. _J.J. Adamson, del._ _Lith. of Sarony & Co. N. Y._] AFRICA AND THE AMERICAN FLAG. CHAPTER I. SUBJECT AND ARRANGEMENT--AREA OF CRUISING-GROUND--DISTRIBUTION OF SUBJECTS. On the 28th of November, 1849, the U. S. brig “Perry” sailed for the west coast of Africa, to join the American squadron there stationed. A treaty with Great Britain, signed at Washington in the year 1842, stipulates that each nation shall maintain on the coast of Africa, a force of naval vessels “of suitable numbers and description, to carry in all not less than eighty guns, to enforce separately and respectively, the laws, rights, and obligations of each of the two countries, for the suppression of the slave-trade.”