LACHLAN, R.

On Systems of Circles and Spheres. Communicated by A. Cayley. Received February 23, - Read March 11, 1886.

(London, Harrison and Sons, 1887). 4to. No wrappers as extracted from "Philosophical Transactions" 1886 - Vol. 177 - Part II. Pp. 481-625. Clean and fine.

First edition of an importent study on the geometry of circles, treating circles as vectors and using basic ideas from linear algebra.

Order-nr.: 44042