R.T.S.
- Satchels or Polaires, [145], [146].
- Schoeffer, Peter, [93], [94], [100], [102], [105].
- Scandinavians, [11].
- Scotland, [104], [131], [147].
- Seraglio library, [34], [35].
- Sopwell, [131].
- Spain, [23], [104].
- Speculum Humanæ Salvationis, [78]–80, [88], [89], [92].
- [Spira], John de, [109], [112], [130].
- —— Vindelinus de, [110], [113].
- Spires, [104].
- —— John of (see [Spira]).
- St Albans, [104], [130], [131].
- St Andrews, [138].
- St Boniface, [37].
- St Columba, [41], [145].
- “St Christopher” Print, [72].
- St Gall, Abbey of, [23], [60].
- St Paul's Cathedral, [52].
- Stationers, [51], [154].
- —— Company of, [51].
- Stereotype plates, printing from, [162].
- Stirling, [138].
- Story, John, [135].
- Strasburg, [89], [90], [92], [93], [103], [105], [107], [110].
- Subiaco, [103], [111].
- [Sweynheim] and Pannartz, [103], [104], [107], [111], [112].