On drainage and sewerage, &c., of towns, with special relation to the late epidemics in Hobart Town and Launceston.

The prevalence during the last three or four months of a fever, whose type was, I believe, assimilated most closely to that which characterizes scarlet fever, has induced me to bring under the notice of the Royal Society, in the first place, the nature of some of those influences which may have aggravated, if not caused, the disease ; and in the second, an outline of the precautions which ought to be taken to secure to the inhabitants of Hobart Town a continuance of the advantages which its position entitles them to claim,-situated as it is on the banks of a noble river, with an atmosphere pure and healthy, if not affected by influences arising from within the city itself.