Robert's Tonic and Malaria Cure
Robinson's Hedyosmia
Roc Citron
Rochelle Salts
Schreiner's Alkaline Powder
Self-Portrait with Saskia
Snedaker's Robert's Pile Ointment
Sodium Hydroxide, U.S.P. Caustic Soda
Soluble Skin Court Plaster
Solution of Formaldehyde
Some people believe
Spirit of Camphor
Stronger Ammonia Water
Suc du Velay
Sulfuric Acid
Sulphur
Sun Cholera Mixture
Sure Throat Mixture