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R
R Monocerotis ... Racine, Jean
racism ... radiolarian
radiology ... Rahner, Karl
Rahr Plains ... Rajapalaiyam
Rajasthan ... Ramakrishna
Ramakrishna Mission ... Ramsay, Allan
Ramsay, Allan ... Randolph, Edward
Randolph, John ... rapparee
rapporteur ... Rathbone, Basil
Rathbun, Mary Jane ... Rawson
Rawsthorne, Alan ... Reader's Digest
readerly and writerly ... Recklinghausen, Friedrich Daniel von
Reclus, Elisee ... Red River Settlement
Red Rock River ... Redstone, Sumner
reduccion ... refraction
refractive index ... Reichenau, Walther von
Reichenbach Falls ... relapsing fever
relative aperture ... renal capsule
renal carcinoma ... renormalization
Renouvier, Charles-Bernard ... Resende, Garcia de
reserpine ... retaining wall
Retalhuleu ... Reventlow, Christian Ditlev Frederik, Count
revenue bond ... Rhaetian Alps
Rhaetian dialects ... Rhodes
Rhodes scholarship ... Rialto Bridge
Riau ... ricercare
Rich, Adrienne ... Richemont, Arthur, Constable de
Richepin, Jean ... Ridgewood
Ridgway ware ... Rigel
Rigestan ... Ringer's solution
Ringerike ... Rishon LeZiyyon
rising sun ... Riversleigh fossils
Riverton ... Robbins, Jerome
Robbins, Lionel Charles Robbins, Baron ... Roberval balance
Roberval, Gilles Personne de ... Rochambeau, Jean-Baptiste-Donatien de Vimeur, comte de
Rochdale ... rocket and missile system
Rockettes, the ... Rodrigues Island
Rodrigues Lobo, Francisco ... Rohan Family
Rohan, Henri, duc de ... Rollo
Rolls, Charles Stewart ... Romanus III Argyrus
Romanus IV Diogenes ... roof
roof pendant ... Rose Theatre
rose window ... Ross, Harold W.
Ross, John ... Rothe, Richard
Rothenburg ob der Tauber ... Roussel, Albert
Roussillon ... Royal Armouries
Royal Astronomical Society ... rubber
Rubbia, Carlo ... Rudolf, Archduke and Crown Prince of Austria
Rudolf, Lake ... Rumoi
Rumor, Mariano ... Rushworth, John
Rusk, Dean ... rustication
Rustin, Bayard ... Rybnik
Rydberg constant ... 
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