IN your issue of September 1 (p. 409), there appeared a review of our “Higher Algebra,” bearing the signature “R. B. H.” The work under consideration is a sequel to an elementary text-book, as the title-page asserts; it does not profess to be anything more, and we should have thought that any reader would have recognized that “Higher” and “Elementary” are merely used as relative terms. This point has been practically ignored by your reviewer, and in consequence his remarks contain certain inaccuracies and misconceptions likely to leave a false impression on the mind of the reader.