Again I was scarred for a long period after the venomous attacks of mosquitoes and sandflies combined at Kuala Klang, on the Malay coast, in its old days of fever, before it started a new sanitary career under the name of Port Swettenham. Yet these myriad bites produced fever of no sort, although I was at that time pronounced a malarial subject. I did not remain in Kuala Klang long enough to be affected by its unhealthiness; but, had Lady Anopheles been justly blamed, the terrible biting I underwent should have taken effect, irrespective of my removal. On the contrary, my own experience of fever was connected entirely with locality and never with mosquitoes. Intermittent fever, the genuine article, with its burnings, its icings, its whole programme of miseries, had me constantly in its grip during residence at a particular house in Kuala Lumpur, the Capital of the Federated Malay States. My one compensation was freedom from mosquito bites. When I left that abode, fever left me, and soon after mosquitoes began to feed on me again with infinite relish. What matter? It was a proof of sound blood, freedom from that worse scourge, malaria! To turn from the personal to what is far more important, the general, let us consider the Medical Reports from that haunt of malaria, the Malay Peninsula. The year 1911 in the Federated Malay States held the unpleasant distinction of being particularly malarious. The mosquito theorists explained as cause a great influx of, often, unhealthy coolies from India, and much clearing of land, which distributed the mosquitoes, and drove them into the houses and among the inhabitants. But, if mosquitoes be culpable, why should this same year have also been particularly unhealthy in regard to most diseases, phthisis excepted? Yet the Medical Report for 1912 shows that, concomitantly with a fall in malaria, 1,010 fewer cases of dysentery were this year treated in hospital. There were 77 notified cases of smallpox, as against 286 in 1911; 29 cases of cholera, as against 620; and 5,676 cases of beri-beri, as against 6,402. The greater prevalence of disease in general in 1911 surely shows that the causes for its specific forms must be deeper seated than mere insect bites. Yet so dominating is the fashion to rivet attention on such factors as these that fundamental troubles, even when known, appear often to be unheeded. The F. M. S. Medical Report for 1912 provides a good instance, taken from the portion dealing with the Institute for Medical Research, Kuala Lumpur.