Rhazes, [93], [105], [110], [113], [120], [121], [127], [182];

Almansur, [110] n. 2.

‘Rheumatic rings’, [182].

Rhineland, spread of scientific knowledge in the, [17–20].

Richard II and the blessing of cramp-rings, [170].

Richardus Anglicus (Richard of Wendover), anatomical work by, [105], [121].

Rieu, C., Supplement to the Arabic MSS. in the British Museum, [228] n. 1.

Rivoli, Duc de, Bibliographie des livres à figures vénitiens, [90] n. 2.

Robersdorf: see [Gertrude of Robersdorf].

Robertson, J. M., Letters on Reasoning, [223] n. 2.