- ras.ac.uk obituaries/Leonard/DarwinLeonard Darwin 1850-1943 The Royal Astronomical Society Fellow's obituary.
- openlibrary.org authors/OL4330869A/Leonard_Darwinby Leonard Darwin First published in 1928 7 editions in 1 language.
- archivesearch.lib.cam.ac.uk agents/people/13793Darwin’s scientific papers include his significant corpus of work on species, evolution and natural selection, and papers relating to the voyage of HMS Beagle, 1831-6.
- dir.md ru.wikipedia.org/wiki/Дарвин,_ЛеонардПервые годы жизни Леонарда прошли в Дауне, где жила семья Дарвинов.
- darwinproject.ac.uk about-darwin/portraits-…It was, alas, lent by William and Leonard to the exhibition accompanying the first International Eugenics Conference in 1912, but without indications of date...
- chips-journal.ru reviews/10-istorij-o-10-detah-…Чарльз Дарвин начал собирать данные о естественном развитии младенцев сразу же после рождения своего первого ребенка, Уильяма Эразма...
- conservapedia.com Leonard_DarwinLeonard Darwin was son of Charles Darwin and was a chairman of the British Eugenics Society.
- liquisearch.com leonard_darwinMajor Leonard Darwin (15 January 1850 – 26 March 1943), a son of the English naturalist Charles Darwin, was variously a soldier, politician, economist, eugenicist...
- rus.team news/215-let-nazad-rodilsya-avtor-teorii…Леонард Дарвин (15 января 1850 - 26 марта 1943) - председатель Королевского географического общества.
- profjoecain.net leonard-darwin-what-is-eugenics/The eighth child of famous biologist Charles Darwin, Leonard turned to the cause of eugenics relatively late in life, when he was 61 (Berra, 2019).