# Author:John Sturgeon Mackay

←Author Index: Ma | John Sturgeon Mackay (1843–1914) |

M.A., LL.D., F.R.S. (Edin.). Chief Mathematical Master at Edinburgh Academy, 1873-1904. First President of the Edinburgh Mathematical Society. Author of Arithmetical Exercises; Elements of Euclid.^{[1]}This author wrote articles for the Encyclopædia Britannica, Ninth Edition. Articles attributed to this author are designated in EB9 by the initials "J. S. M." This author wrote articles for the 1911 Encyclopædia Britannica. Articles attributed to this author are designated in EB1911 by the initials "J. S. M." |

## WorksEdit

*Elements of Euclid*(1884)*Arithmetic, Theoretical and Practical*(1899)*Plane Geometry*(1904-5)- “Euclid” in
*Encyclopædia Britannica*(9th ed., 1878). - "Euclid," in
*Encyclopædia Britannica*(11th ed., 1911)

## ReferencesEdit

- ↑ Gibson, George A. (1914). "John Sturgeon Mackay, M.A., LL.D.".
*Proceedings of the Edinburgh Mathematical Society***32**: 151–159. doi:10.1017/S0013091500035136.

**public domain** worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.