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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.) ARTICLE PDF RIGHTS AND PERMISSIONS Reprints
and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE _Key to the Elements of Euclid_ . _Nature_ 32, 388 (1885). https://doi.org/10.1038/032388b0 Download citation * Issue Date: 27 August
1885 * DOI: https://doi.org/10.1038/032388b0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a shareable link is not
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