Abstract
When the requirements of sanitation and prophylaxis of disease demand additional expenditure of money by those who are interested in keeping down expense, sometimes regardless of other considerations, trouble ensues. There is then required a campaign of education and of enlightenment of the people and of the law-makers so that proper legislation may be secured to enforce what may not be willingly done otherwise. We are much interested to note the report of the Central Railway of New Jersey, which has recently installed a system of car cleaning by the vacuum sweeping system. The dirt and dust is drawn from all the surfaces in the car by suction through a pipe. The work is done effectively, hygienically, and—a noteworthy fact— economically. The railroad management announces that this system reduces the cost of cleaning so that two cars can be thoroughly cleaned under the new system at the same expense of
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