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Published online by Cambridge University Press: 20 November 2018
In a recent paper (6), S. T. Hu investigated the initial projection from the mth enveloping space of a topological space X into X and proved that, under some local conditions on X, the initial projection is a fibering. In a subsequent paper (7), Hu showed that the terminal projection from the mth enveloping space is a fibering without assuming the local conditions on X and in (8) he used the terminal projection from the second enveloping space in his topological immersion theorem.