Societies and Academies


    LONDON. Mathematical Society, January 10.—Prof. W. Burnside, president, in the chair.—An exhibition of models of fourdimensional figures was made by Mrs. A. Stott. The models are sections by three-dimensional flat spaces of the six regular hypersolids of a flat space of four dimensions. The sections are in general polyhedra; and corresponding faces of different polyhedra, forming a series of sections of the same regular hypersolid, are coloured identically in order to show the relations between the different sections. Other models show the grouping about a point of the regular hypersolids which have the space-filling property.

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    Societies and Academies . Nature 75, 286–288 (1907) doi:10.1038/075286b0

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