I want to know the answer to the following question:
In 1934, what percentage of architects were members of professional organizations?
All the background I'm provided with is that "Soon after the passing of the 1931 Act, in the book published on the occasion of the Institute's centenary celebration in 1934, Harry Barnes, FRIBA, Chairman of the Registration Committee, mentioned that ARCUK could not be a rival of any architectural association, least of all the RIBA, given the way ARCUK was constituted.". Is that enough to answer the question?
Answer: no