Copy letter from Herbert Rix, to G V Poore, Honorary Secretary Congress of Hygiene, 20, Hannover Square, W. 'Dear Sir, The Officers of the Royal Society have no objection to the proposed tent being erected in the quadrangle, provided that sufficient roadway is left for vehicles to come to the doorways. I am, yours truly, Herbert Rix Asst Sec RS [Assistant Secretary, Royal Society]'. 27 July 1891