In the Mediterranean dead-reckoning had become a more or less precise art, and no doubt for all practical purposes it was good enough within that inland, almost tideless sea.
KwiMediterrean amatye afileyo abanomsebenzi wobuchule athe ngqo kakhulu okanye ngaphantsi, kwaye akukhomathandabuzo wesizathu somsebenzi owenziwayo yayanele ngokulungileyo phakathi kumhlaba ophakathi, phantse kulwandle olungabonisi kuzala.