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������==��= 5� ci=«rl �tt = i c= · =� =m �t t � i� t4� U=. ==�==���==� �� �� � by calling at the mills on Rock River, Illinois . For the Scientific American. with fu ll grown boilers, of their having been worked until they became perfectly dry, and nO explosion ensue.!. Why ? Because water and sa.tur ated steam was nQt present. For we contend, it just as much r equires water, s atqra ted and uns aturated stea.m to produce the in stantaneous explosive power, as it does nitre, sulphur and chdoi:10.1038/scientificamerican03231850-211 fatcat:uvlyneelijeppiw7rnwentzhnm