Copy of a letter from Ross to Sir Joseph West Ridgeway One of the difficulties over malaria prevention is that too small a force of labourers is employed. Suggests that it would be better to spend money on sanitary work rather than a small hospital and that prior to Sir JW Ridgeway's departure for Ceylon and North Borneo he should read M Watson's Prevention of Malaria in the Federated Malay States 11/12/1911