Naturalis historia (excerpts: preface, books 1-5)
(lat.)
at The Latin Library
[www.thelatinlibrary.com/pliny1.html]

Naturalis historia (excerpt: book 34)
(french: M.E. Littré)
at Itinera electronica
[agoraclass.fltr.ucl.ac.be/concordances/Plineancien_histnat34/lecture/default.htm]