* Joseph Dalton Hooker Joseph Dalton Hooker's work on orchids* "Hooker, Joseph Dalton (1817–1911)" "Botanicus," Missouri Botanical Garden Library* A website dedicated to J D Hooker** Gutenberg e-text of Hooker's Himalayan Journals* Several scanned books at http://gallica.bnf.fr* Works by Joseph Dalton Hooker at the Biodiversity Heritage Library
* Darwin-Hooker Correspondence Digitised version of Hooker's correspondence with Darwin on the Cambridge Digital Library* Joseph Dalton Hooker Joseph Dalton Hooker's work on orchids* "Hooker, Joseph Dalton (1817–1911)" "Botanicus", Missouri Botanical Garden Library* A website dedicated to J D Hooker** Gutenberg e-text of Hooker's Himalayan Journals* Several scanned books at http://gallica.bnf.fr* Works by Joseph Dalton Hooker at the Biodiversity Heritage Library* Correspondence to Joseph Dalton Hooker as Director of The Royal Botanic Gardens, Kew is being made available online through the Directors' Correspondence Project.