Description | 'Dear Sir, In answer to your note of yesterday I am afraid I cannot give you any information beyond what you have already seen in the "Times"; all I can do is to refer you to the patentee of the invention Mr John M Richards, 46 Holborn Viaduct, E.C. I am, yours faithfully, Herbert Rix Asst Sec R.S. [Assistant Secretary, Royal Society]'. |