Martin F. Roberts

Discussion on Mr. Preece's paper, ¿On the specification of insulated conductors for electric lighting and other purposes¿

R E B Crompton, Alexander Siemens, W. E. Gray, 1892 .

Discussion on 'The electrical system of the London County Council tramways'

Allan Clark, K. Edgcumbe, H. W. Clothier, 1909 .

Continuation of discussion on Mr. Preece's paper, ¿On the specification of insulated conductors for electric lighting and other purposes¿

James Swinburne, W. E. Gray, W. B. Esson, .