Abstract
THE general type of ruled surface of the fourth order was mentioned by Chasles in 1861. In 1864 and 1868 these surfaces were studied and classified, though not quite completely, by Cayley, who obtained his different types by means of directing curves and gave algebraic equations for them. The complete classification was first given by Cremona (1868), who used the method of correspondence between two curves. Ruled surfaces of the fifth order were classified by means of their double curves by Schwarz in 1867.
The Theory of Ruled Surfaces.
By W. L. Edge. Pp. ix + 324. (Cambridge: At the University Press, 1931.) 20s. net.
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P., H. The Theory of Ruled Surfaces . Nature 128, 856 (1931). https://doi.org/10.1038/128856c0
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DOI: https://doi.org/10.1038/128856c0