Note: I delivered a shortened version of this paper (entitled 'Early Explorers and Practitioners of a shared 'Secret Vice') at the May 2016 International Medieval Congress in Kalamazoo, Michigan as part of the Tolkien and Invented Language Session.
Higgins, Andrew S. Dr.
"Tolkien's A Secret Vice and 'the language that is spoken in the Island of Fonway',"
Journal of Tolkien Research:
1, Article 3.
Available at: http://scholar.valpo.edu/journaloftolkienresearch/vol3/iss1/3