Letters from Dr Niels Bro Letter from E C Graham, Secretary of the Orthological Institute, to Dr Niels Bro, of Copenhagen, Denmark in response to Dr Bro's letter to C K Ogden, regarding 'Iverson's' work. Dated October 8th 1935 Letter from C K Ogden to Dr Bro in response to Bro's letters about the work of Iverson and Nasgård and his views on their relevance to Orthology. Dated October 23rd 1936. 1935-1936