| The right vvay: or A direction for obtaining good successe in a weighty enterprise (1648) by William Gouge | | |
| The rights of primogeniture (1648) by James Ussher | | |
| The sinne of hardnesse of heart: the nature, danger, and remedy of it (1648) by Stephen Marshall | | |
| The spring of strengthning grace in the Rock of Ages (1648) by Thomas Hill | | |
| The strength of the saints to make Jesvs Christ their strength (1648) by Thomas Hill | | |
| The teachings of Christ in the soule. Opened in a sermon before the Right Honble House of Peers (1648) by Peter Sterry | | |
| The translation of a sinner from death to life, by the free grace of God (1648) by William Lyford | | |
| The true doctrine of justification asserted and vindicated (1648) by Anthony Burgess | | |
| The true informer, or Monthly mercury (1648) by John Harris | | |
| The vengeance of the temple: discovered in a sermon preached before the Right Honourable the Lord Major (1648) by William Strong | | |
| True doctrine of justification. Part 1 (1648) by Anthony Burgess | | |
| Truth and love happily married in the saints, and in the churches of Christ the contract drawn (1648) by Thomas Hill | | |
| Two letters written by Mr Harris in vindication of himselfe from the known slanders of an unknown author (1648) by Robert Harris | | |
| Unum necessarium (1648) by John Cook | | |
| Vindiciae gratiae, potestatis, ac providentiae Dei (1648) by William Twisse | | |