15 APRIL 1922, Page 3

We regret to record the death, on Sunday, of Sir

Patrick Manson, the pioneer of the great medical discoveries which have revolutionized the economic and political problems of the tropics. Sir Patrick Manson was born in Aberdeenshire in 1844 and, after graduating in medicine at Aberdeen, went to Formosa to study. the local diseases. At Amoy, in the early 'seventies, he first detected the agency of the mosquito in spreading elephan- tiasis. This new fact was the basis of the science of tropical medicine which he and his disciples, like; Sir Ronald Ross and Sir David Bruce, built up. Malaria and yellow fever were gradually traced to infection by mosquitoes. It then became possible,. by destroying the mosquitoes in their breeding-places, to free. Cuba and the. Panama Canal zone from " Yellow Jack " and to make the fever-ridden Campagna habitable by healthy people. The British Empire, with its vaat.territories in tropical Africa and Malaysia, owes much to. Sir Patrick Manson.