Description | Communicating a paper by Dr Fourier d'Albe on an ingenious arrangement for utilising the properties of selenium for transforming visual impressions into sound, and thereby possibly taking a step towards enabling blind persons to read the type of the ordinary printed characters, stating it is worthy of the Proceedings of the Royal Society. Informs that De Fourier wishes to demonstrate an early form of the instrument at one of the Soirees in 1914, suggesting the June Soiree, and enquiring whether the prospect is acceptable. |