Letter from Alfred Clarence Redfield, Department of Physiology, Harvard Medical School, 240 Longwood Avenue, Boston 17, Massachusetts, to Joseph Barcroft He has acquired most of the apparatus required including the possible loan of an x-ray machine. Redfield encloses a copy of a letter to General Cooper and asks for copies of letters to help get equipment through customs. Bock had discovered a comrade at arms in the customs house. He is unable to find ways of getting to New Orleans from Panama without delays and it may be quicker to go via New York. Notes timings and states that he has heard nothing from [Carl] Binger or [George] Harrop. 18 August 1921