|Alternative reference number
|Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to E. A. Zimmerman Esq.; Messrs Juergens & Andersen Co., 55 East Washington Street, Chicago
|24 March 1930
|Answers E. A. Zimmerman's enquiry about Pearl Fisheries, informing him that the Royal Society published a 5-part paper on the subject, which is available from booksellers.