Article date: Apr 1958
Article title: Concerning the celebrated puzzle of five sailors, a monkey and a pile of coconuts
Mathematical Games column? Y
Book: 2. More Mathematical Puzzles and Diversions
Chapter: 9. The Monkey and the Coconuts
This data confirmed? yes
Notes
Peter Rowlett (27 August 2022):
Peter Rowlett initial guess (Uncertain)
Peter Rowlett (26 October 2023):
I have seen this chapter and column side-by-side and they match.