JAMA. 1927;89(22):1889. doi:10.1001/jama.1927.02690220065027.
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The Hygiene of Transportation Services in Berlin  Professor Friedberger, head of the Forschungsinstitut für Hygiene in Berlin-Dahlem, discusses in the November 4 issue of the Deutsche medizinische Wochenschrift some of the defects of public hygiene. He censures the cheaper class of apartment buildings. On the other hand, he objects also to the founding of settlements at too great distances from the city, on the ground that the inhabitants of suburbs lose too much time in getting into the city, and, owing to the hygienic defects in the transportation services, are exposed to many dangers. Placing the population of Berlin at four million and assuming that one half, or two million, are gainfully employed, he figures that thirty-seven million working days are lost in traveling to and from work. With the Bechstein "luxmeter" he found that the lighting of the street railway lines was fairly satisfactory. The illumination of the autobusses


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