POYNTING, J.H.

An Experiment in Search of a Directive Action of one Quartz Crystal on another. Received September 27, - Read November 17, 1898.

(London, Harrison and Sons, 1892). 4to. No wrappers as extracted from "Philosophical Transactions", 1891, Vol. 192 - Series A. Pp. 245-256, textillustr.

First printing of these experiments in oder to measutre the gravitational constant.
"Closely related to his investigations on the constant of gravitation is the experiments in search of a directive action of one quartz crystal on another, which, though leading to a negative result is a model of the application of refined methods to physical researc of great delicacy."(From the motivation for receivind the Royal Medal).

Order-nr.: 43001