Abstract
A general discussion is given of the main factors affecting the successful attainment by induction melting of stable floating zones in a wide variety of materials. The emphasis is on poor conductors, for which the problems involved can usually be solved. Details of the apparatus and procedures used in the floating zone growth of NaCl, KCl, KBr, KI, and LiF single crystals are given, as well as specifications of the quality of such crystals as determined by various tests.

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