About: http://webisa.webdatacommons.org/355597918

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	He took up the study of natural history at an early age, and became the friend and correspondent of Charles Darwin, Agassiz, Asa Gray, Wallace, Professor Owen, and other naturalists.
http://www.w3.org/ns/prov#wasQuotedFrom	wikisource.org