IT has been reported 1,2 that pure titanium metal, prepared by the dissociation of titanium tetraiodide 3, undergoes an allotropic change in the temperature range 860–900° C. Titanium has a hexagonal ...
DR. W. G. BURGERS and Dr. van Amstel are to be congratulated on their success in obtaining a cinematograph record of the change in iron by the very beautiful method they describe in NATURE of November ...
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