| Description | 'Replying to your note of the 1st instant, send on here from the Royal Society of Medicine, the paper by Dr de Lange on the "Thermophone" will be published in the next number of the Proceedings of the Royal Society, Series A (No.628) on or about April 1st, and may then be obtained from Messrs Harrison & Sons, 45 St Martin's Lane, WC, at the published price.' |