Householders should not be allowed to excavate small tanks in their compounds to procure earth from for the plinths of their houses, as these become in time mere cesspools, where the inmates bathe, wash their clothes, and often drink the water. Further, these become suitable breeding-places for mosquitoes. Plots of ground should be set aside by Municipalities, where, for proper reasons, earth can be taken. These common excavations will in time become large tanks, which can be properly conserved and utilized. For the same reason earth for roads and railways should not be removed from isolated pits, but should be taken so that the resultant excavation forms one continuous channel running parallel with the road, or should be taken in shallow layers so as to avoid the formation of a pit or hollow, the existence of which is especially objectionable in the light of recent research as mosquitoes breed and generate in them, and so spread malarial fever. Where such hollows exist, the growth of fish should be encouraged, as they feed on the mosquito larvæ when present. [Sidenote: Cultivation within urban limits.] From the experience of troops on service, it is found that camping near recently turned-up soil is usually followed by fever. Ploughing up of land for agricultural purposes should, if possible, be prevented within municipal urban limits. In most municipalities there is a suburban area which is pretty well all cultivated, but cultivation in densely populated areas, as often occurs, should be discouraged. [Sidenote: Dhobies.] Dhobies should not be allowed to wash clothes in stagnant tanks, as it has been proved that the spread of parasitic eczema, or dhobies’ itch, is thereby facilitated. Where a water-supply exists a small washing platform with taps should be provided free of charge by the Municipality. Where not, they should be made to wash in running water, or in tanks specially passed by the medical officer. It is most important that all dhobies be registered, licensed and told off to the different ghats; it may be free of cost to them in the first instance, but after the system has been successfully introduced, well-to-do employees can easily be induced to pay a small annual fee for superior accommodation. This will eventually fully cover the cost of the necessary supervising establishment and incidental expenditure. [Sidenote: Markets.]