Bertie's letter to Nobby^✦︎ and Bertie Wooster

They deal with each other in Joy in the Morning 4, 12, 21, 24, 25, 29.

Every dealing, in order

Chapter 4Bertie Wooster writes and posts Bertie's letter to Nobby
Chapter 12Bertie Wooster wrote to Nobby Bertie's letter to Nobby (earlier)
Chapter 21Bertie Wooster wrote to Nobby insulting Florence in Bertie's letter to Nobby (earlier)
Chapter 24Bertie Wooster urges Nobby to show Florence quickly Bertie's letter to Nobby
Chapter 25Bertie Wooster needs Florence to see Bertie's letter to Nobby
Chapter 29Bertie Wooster counted on to disillusion Florence Bertie's letter to Nobby