 This result was communicated to the Royal Society in 1767.His five seasons in Newfoundland produced the first large-scale and accurate maps of the island's coasts and were the first scientific, large scale, hydrographic surveys to use precise triangulation to establish land outlines.They also gave Cook his mastery of practical surveying, achieved under often adverse conditions, and brought him to the attention of the Admiralty and Royal Society at a crucial moment both in his career and in the direction of British overseas discovery.