About: http://webisa.webdatacommons.org/423166954

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The letter mostly concerns a dedication to Croker on a book about compass variation by J. Bain.
http://www.w3.org/ns/prov#wasQuotedFrom	cf.ac.uk