Spence, William. **E.191.10 Mathematical essays. Ed. by John F. W. Herschel. With a biographical sketch of the author. [By
John Galt.]
London. Underwood. 181% xxxii, 295 pp. 4" Contents. - Preface. Biographical sketch; On the various orders of logarithmic transcendents; In- vestigations of the properties of some analytical functions.
-Mathematics. —- Collections.