Letter from Dr [John Switzer] Owens, Committee for the Investigation of Atmospheric Pollution, 47 Victoria Street, Westminster, London, S.W, to The Secretary, Royal Society, London Offers to present a paper on his new air filter to the Fellows of the Royal Society, providing a description of the device and highlighting its potential benefits, including the ability to measure atmospheric pollution effectively. Seeks guidance on whether such a paper would be suitable for presentation. Enclosed is a leaflet titled "Owens' Air Filter". 10 December 1914