thereabouts, and the direction is eastward, In the course of ten or twelve years this pestilence has travelled from Méngtze, in 104° longitude to Hongkong in 114° in direction east-south east. It has kept on the lines of traffic, yet only from west to east on the whole. It comes from a malarious country which has been for four centuries notorious among the Chinese as dangerous to human life. This circumstance supports the Chinese view that this pestilence comes out of the ground. The minute animal that causes it first attacked various animals and then man. Drought is connected with pestilence, and rain often, as in the case of the Yunnan plague, is the means of bringing about a cessation of its ravages. If this pestilence is to be checked before it becomes a world-wide minister of destruction there must be great sanitary activity and the universal cleansing of streets and sewers. The history of the cholera and of the old plague shows how far diseases of tropical origin may spread, after they have acquired new strength, even to temperate climates. To prevent this in future will be a noble triumph of sanitary science.
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thereabouts, and the direction is eastward, In the course of ten or twelve years this pestilence has travelled from Méngtze, in 104° longitude to Hongkong in 114" in direction east-south east. It has kept on the lines of traffic, yet only from west to east on the whole. It comes from a malarious country which has been for four centuries notorious among the Chinese as dangerous to human life. This circumstance supports the Chinese view that this pestilence comes out of the ground. The minute animal that causes it first attacked various animals and then man. Drought is connected with pestilence, and rain often, as in the case of the Yunnan plague, is the means of bringing about a cessation of its ruv- ages. If this pestilence is to be checked before it becomes a world-wide minister of destruction there must be great sanitary activity and the universal cleansing of streets and sewers. The history of the cholera and of the old, plague shows how far diseases of tropical origin may spread, after they have acquired new strength, even to temperate eliinates. To prevent this in future will be a noble triumph of sanitary
* science.
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