Chapter VI: ELECTRICITY.--Effect of Chlorine on the Electro-motive Force

of a Voltaic Couple.--By D. G. GORE, F.R.S.--A very curious
investigation, disclosing the sudden change in E. M. F. produced
by a definite addition of chlorine. 10351

On a Theory Concerning the Sudden Loss of Magnetic Properties of
Iron and Nickel.--By Mr. A. TOMLINSON, B.A.--A new theory,
involving the probable rearrangement of the molecules or
"magnetic atoms" of the metals in question. 10358

The Passive State of Iron and Nickel.--Note of this curious
phenomenon. 10347

The Wimshurst Electric Machine.--Illustration of 13-1/2 inch sparks
produced by it.--1 illustration. 10352

The Application of Electricity to Lighting and Working.--By W.
H. PREECE.--Lecture I. 10350