Third Meeting: 25th June, 1913.

Professor T. H. Easterfield, President, in the chair, and about fifty members.

Technological Section.—In accordance with notice of motion given at the May meeting, Mr. R. W. Holmes moved, That a Technological Section of the Society be formed. Seconded by Mr. W. Ferguson. After discussion by Mr. G. V. Hudson and Mr. P. G. Morgan, the motion was carried, Mr. Hudson dissenting.

Exhibits.—Professor Laby exhibited and described electrical apparatus for use with alternating currents.

Mr. C. A. Cotton exhibited and described apparatus for opaque projection.

Mr. W. A. Stewart exhibited some photographs showing the reflection of X-rays.

Papers.—1. “The Calibration of Copper Constantan Thermo-electric Couples,” by Mr. E. O. Hercus, M.Sc.

Professor Laby and Mr. Adams congratulated Mr. Hercus on the work he is doing.

2. “The Nature of Gamma Rays from Radium,” by Mr. P. W. Burbridge, M.Sc.

The President congratulated Mr. Burbridge on winning the 1851 Exhibition Science Scholarship.

Lord Avebury.—Mr. G. V. Hudson referred to the recent death of Lord Avebury, and moved, That the Society expresses its keen sense of regret at the great loss to science, and to the world in general, through the death of Lord Avebury.