35. Professional correspondence : January 1953 - July 1953
36. Professional correspondence : July 1953 - September 1953
37. Professional correspondence : October 1953 - November 1953
38. Professional correspondence : November 1953 - March 1954
39. Professional correspondence : March 1954 - November 1954
40. Professional correspondence : January 1955 - September 1955
41. Professional correspondence : September 1955 - May 1956
42. Professional correspondence : June 1956 - October 1956
43. Professional correspondence : October 1956 - March 1957
44. Professional correspondence : April 1957 - August 1957
45. Professional correspondence : August 1957 - November 1957