Abstract
LONDON Mathematical Society, May 8.—Dr. Hirst, F.R.S., in the chair. Prof. Cayley communicated an extract from a letter he had received from M. Hermite “On an application of the theory of unicursal curves,” and then gave accounts of the two following papers, “Plan of a curve-tracing apparatus,” and “On a rational quintic correspondence of two points in a plane:” another paper entitled “Bicursal curves” (i.e. curves with a deficiency one) by the same gentleman, was taken as read.—Mr. S. Roberts read a short “Note on the Plückerian characteristics of epi- and hypo-trochoids,” &c., showing that the curves were unicural: he gave also the order and class. In connection with these curves Mr. J. L. Glaisher advocated the use of Mr. Perigal's term “bicircloids.” Amongst the presents received were twenty-two memoirs, &c., by the late Prof. de Morgan, presented by Mrs. de Morgan.
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Societies and Academies . Nature 8, 58–60 (1873). https://doi.org/10.1038/008058a0
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DOI: https://doi.org/10.1038/008058a0