 Batavia was known for its outbreaks of malaria, and before they returned home in 1771 many in Cook's company succumbed to the disease and other ailments such as dysentery, including the Tahitian Tupaia, Banks' Finnish secretary and fellow scientist Herman Spöring, astronomer Charles Green, and the illustrator Sydney Parkinson.Cook named Spöring Island off the coast of New Zealand to honour Herman Spöring and his work on the voyage.Cook then rounded the Cape of Good Hope and stopped at Saint Helena.