At the usual meeting of the Sanitary Board, held yesterday, an important and interesting letter from Dr. J. C. Thomson relative to the extermination of mosquitoes was read. Dr. Thomson had made a careful investigation of the nullah crossixz Macdonnell Road (where fever has bee very prevalent lately) and he found swarms of anopheles larve in the pools. He recommended that the nullo should be drained and various other precautions xen to prevent the formation of breeding grounds for the insects, including the treatnient of puddles, that could not be drained, with kerosene, which destroys the larve., "It was agreed that this, letter should be published.
Text read from the printed page and cleaned; old type leaves the occasional error.