It must not of course be forgotten, that the provision of a free supply of good vegetables is everywhere an essential to health, and is in many localities obtainable in no other way than by the maintenance of a garden, and that under such circumstances, it is probably safest to keep their cultivation under personal supervision; but where such an accessory is indispensable, its attendant dangers should always be carefully borne in mind, and care should be taken that the garden should be so worked as to avoid its becoming a breeding place for mosquitoes. A house for example, such as that shown in the subjoined sketch, makes, doubtless, a very inviting picture, but when lived in, it would be found that the fine trees almost completely cut off the breeze, that the beautiful creepers render the verandahs and the rooms behind them “stuffy,” and that the wealth of vegetation, combined with the arrangements for irrigation, render it a veritable paradise of mosquitoes. [Illustration: FIG. 1.--A Regular Mosquito-trap Bungalow.] Coming now to questions of general plan, one of the first essentials is that the floor level should be well raised above that of the surrounding ground. In most localities this object is attained by simply forming a platform of earth dug from some situation hard by, so as to form a plinth; and too often, the excavations for the purpose are made absolutely without plan or method, and result in the production of a number of irregular depressions, close by the habitation; which during rainy weather are always full of water, and form ideal breeding places for mosquitoes, besides too often serving as depositories for refuse. The earth for forming the plinth should, however, never be allowed to be obtained in this way, but previously to laying out the plan of the house or station, a careful survey of the levels and contours of the site should be made, and the alignment of a series of deep cuttings, so designed as to form an efficient system of surface drains extending from the site to the nearest natural effluent, should be laid out, so that the spoil wherewith to form plinths should be taken in a systematic manner in the digging of these cuttings, and from no other situations. The cuttings should be made as deep and narrow as they can be without expensive revetting of the sides, as experience has shown that the larvæ of the really dangerous species of mosquitoes, the _Anopheletes_, avoid collections of water shielded from the sun and light. As the station develops, it may perhaps become possible to pave these channels with some permanent material, such as brick or concrete, but as a rule the expense of such a proceeding is prohibitory. When, however, a certain amount of money is available for this purpose, it should be devoted to paving the smaller shallow surface drains close to the dwelling, and the deeper distant cuttings close to the effluent left to the last. No house