Sixteen years later, a dispute arose, interesting to navigators, as to the precise location of Cape Frio in Brazil.

An American had pointed out an error in European charts.

It was a matter of some importance, because ships bound for Rio de Janeiro necessarily rounded Cape Frio, and the error was sufficiently serious to cause no small risk if vessels trusted to the received reckoning.

The Naval Chronicle devoted some attention to the point; and to it Flinders sent a communication stating that on consulting his nautical records he found that on May 2nd, 1795, he made an observation, reduced from the preceding noon, calculating the position of the Cape to be latitude 22 degrees 53 minutes south, longitude 41 degrees 43 minutes west.

His memorandum was printed over a facsimile of his signature as that of "a distinguished navigator," and was hailed as "a valuable contribution towards clearing up the difficulty concerning the geographical position of that important headland."* (* Naval Chronicle Volume 26.) For us the incident serves as an indication of Flinders' diligence and carefulness in the study of navigation.