- Rabid
- Radiation
- Radical Innovators
- Rafael Gutiérrez Girardot y España, 1950-1953
- Ramajana. Epos indyjski
- Rapport sur un mémoire de MM Piobert et Morin
- Rational Fog
- Rays of Positive Electricity and Their Application to Chemical Analyses
- Reality Is Not What It Seems
- Realizing the Dream of Flight: Biographical Essays in Honor of the Centennial of Flight, 1903-2003 -...
- Recherches sur des hybrides végétaux
- Recherches sur la culture de la pomme de terre industrielle et fourragère
- Recherches sur la nature de l’Éthal
- Recherches sur les causes particulieres des phénoménes électriques
- Recherches sur les substances radioactives
- Recherches sur les végétaux nourrissans
- Reconnecting to Reality
- Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work
- Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work
- Reflections on the Decline of Science in England and on Some of its Causes
- Reise in die Aequinoctial-Gegenden des neuen Continents - Band I
- Reise in die Aequinoctial-Gegenden des neuen Continents - Band II
- Reise in die Aequinoctial-Gegenden des neuen Continents - Band III
- Reise in die Aequinoctial-Gegenden des neuen Continents - Band IV
- Reise mit Kapitän Bering von Kamtschatka nach Amerika
- Reise um die Welt auf der Resolution unter dem Kommando von Kapitän James Cook
- Rejtélyes elődök 2.
- Religie Rzymu
- Remarks on Some Fossil Impressions
- Reordering Life
- Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876: Porulosa (Spumel...
- Reptiles and Birds: A Popular Account of Their Various Orders, With a Description of the Habits and ...
- Rescuing Prometheus
- Researches in Sinai
- Researches on Cellulose
- Response in the Living and Non Living
- Response in the Living and Non-Living
- Resumen de Aproximación Histórica al Concepto de Ciencia y a su Problemática
- Revivendo os Ícones dos Anos 80’s
- Revolution in Mind
- Revue scientifique - 31 mai 1867
- Rewolucja rosyjska
- Rivières et rivaux
- Rockets and People, Volume III: Hot Days of the Cold War - Memoirs of Russian Space Pioneer Boris Ch...
- Rocks Of Ages
- Roentgen Rays and Phenomena of the Anode and Cathode
- Rome et la science moderne
- Rosja – wielkie zmyślenie. Od wolności Gorbaczowa do wojny Putina
- Rotmistrz Pilecki. Ochotnik do Auschwitz
- Routes et chemins de l’ancienne France
- Rutherford and Fry’s Complete Guide to Absolutely Everything (Abridged)
- Réflexions sur la puissance motrice du feu