So it is with the present project. All we have to do is to 

 keep a sufficient staff of men constantly employed upon 

 the job. 



Before showing how this can be done, we must describe 

 the breeding places in greater detail. 



4. The Breeding Places of Culex. In the gardens 

 and backyards of most houses, especially the houses of 

 natives in the tropics, there are generally numerous tubs, 

 pots, gourds, old buckets, broken flower-pots, empty oil tins 

 and meat tins, broken bottles, and such like. During rainy 

 weather, most of these contain a little rain-water; and 

 wherever this water exceeds a few ounces in quantity, and 

 has been standing long enough, there we shall find the 

 larvae of Culex. Tubs and cisterns employed for collecting 

 rain-water from the roof, or for storing water for gardens, 

 or even for keeping water for drinking, are favourite breed- 

 ing places if they are left undisturbed long enough. Pots 

 of water left by servants in the neighbourhood of cook- 

 rooms and in back verandahs, and then forgotten, are very 

 suitable. We can even find larvae in the tins of water 

 placed under the feet of tables and meat safes for the 

 purpose of excluding ants ; or in gutters which carry rain 

 from the roof, and which have sagged, so as to contain a 

 little stagnant water after the rain has passed ; or in un- 

 corked empty bottles and sardine tins thrown on a dust- 

 heap ; or in tin-lined packing cases ; or in the hollows of 

 bamboos, drain pipes, or even cannon in fact, wherever a 

 little rain-water can collect 



After the rains, Culex larvae generally exist in collections 

 of water made for gardening or household purposes ; 

 cisterns ; gutters running from stables, cookrooms, and 



