Abstract
THIS is a most valuable pendant to the edition of the “Elements” which we recently had occasion to notice so favourably. It is a book of nearly the same size as the “Elements” and yet contains, in consequence of the general omission of diagrams, solutions of the very large collection of admirable deductions which Mr. Mackay collected for the student in that work. De Morgan's words, quoted in the short preface, furnish ample ground for the omission of figures: “I am satisfied, from sufficient trial, that when proper description of the diagram is given in the text, the person who draws his own diagram from the text will arrive at the author's meaning in half the time which is employed by another to whom the successive appearance of the parts is prevented by his seeing the whole from the beginning.”
Key to the Elements of Euclid.
By J. S. Mackay (W. and R. Chambers, 1885.)
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Key to the Elements of Euclid . Nature 32, 388 (1885). https://doi.org/10.1038/032388b0
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DOI: https://doi.org/10.1038/032388b0