 Presumably he had sickness on board, for he sent a boat ashore to search out medicinal herbs.He returned in 1579 with a supply of "Drimys" bark, and for centuries before vitamin C was isolated, "Winter's Bark" was esteemed as a preventive and remedy for scurvy— correctly so, for an infusion of "D. winteri" sustained Captain James Cook and his crew in the South Pacific, and the naturalist accompanying his voyage of exploration, Johann Reinhold Forster, was the first to officially describe and name "D.