A contempolary opinion on Perott's paper. Despite the incommensurability between the result of his 1889 paper and the effort required to read it, Perott's paper had to paraphrase Sir Arthur Conan Doyle's characterization of Professor Moriarty's paper on the binomial theorem an American vogue, one that would be inconceivable today. In the June 25,1891 issue of the nation one finds the following on page 519