Charts. Natal, Brazil, Porto de Natal, from Brazilian surveys to 1936, scale 500 yds.=4.3 in., natural scale 1:5,000; Approaches to Porto de Natal, east coast of Brazil, from French survey in 1867 and Brazilian surveys to 1936, scale naut. m.=4.8 in., natural scale 1:15,000; chart 1313.