Cambridge University Press has recently (in the past year or so) begun to release what appears to be either short print runs or print-on-demand titles of old long out of print works. There are a number of very nice titles that are typically difficult to find – even on Google books.

Cambridge Library Collection – Linguistics

Cambridge Library Collection – Religion

The Old Testament in Greek 4 Volume Set
According to the Text of Codex Vaticanus, Supplemented from Other Uncial Manuscripts, with a Critical Apparatus Containing the Variants of the Chief Ancient Authorities for the Text of the Septuagint
Edited by Alan England Brooke, Norman McLean, Henry St John Thackeray

A Comparative Grammar of the Sanscrit, Zend, Greek, Latin, Lithuanian, Gothic, German, and Sclavonic Languages 3 Volume Set
Franz Bopp, Edited by H.H. Wilson, Translated by Edward B. Eastwick
3 Paperback books | Published February 2010

Vorlesungen über Syntax: mit besonderer Berücksichtigung von Griechisch, Lateinisch und Deutsch 2 Volume Set
Jacob Wackernagel
2 Paperback books | Published April 2010

An Exact Transcript of the Codex Augiensis
A Græco-Latin Manuscript of S. Paul’s Epistles, Deposited in the Library of Trinity College, Cambridge; To Which is Added a Full Collation of Fifty Manuscripts
Edited by Frederick Henry Ambrose Scrivener

An Introduction to the Old Testament in Greek
With an Appendix Containing the Letter of Aristeas
Henry Barclay Swete, Edited by Henry St. John Thackeray

Novum Testamentum Graece 2 Volume Set
Textum ad Fidem Codicum Versionum et Patrum Recensuit et Lectionis Varietatem Adjecit D. Jo. Jac. Griesbach
2 Volume Set
Johann Jacob Griesbach

Novum Testamentum Graece et Latine 2 Volume Set
2 Volume Set
Karl Lachmann, Philipp Buttmann

The Book of Revelation in Greek Edited from Ancient Authorities
Samuel Prideaux Tregelles

The Greek New Testament
Edited from Ancient Authorities, with Their Various Readings in Full, and the Latin Version of Jerome
Volume 5, Hebrews to Philemon
Edited by Samuel Prideaux Tregelles

The Greek New Testament
Edited from Ancient Authorities, with Their Various Readings in Full, and the Latin Version of Jerome
Volume 4, Romans to 2 Thessalonians
Edited by Samuel Prideaux Tregelles

The Greek New Testament
Edited from Ancient Authorities, with Their Various Readings in Full, and the Latin Version of Jerome
Volume 3, Acts and Catholic Epistles
Edited by Samuel Prideaux Tregelles

The Greek New Testament
Edited from Ancient Authorities, with Their Various Readings in Full, and the Latin Version of Jerome
Volume 2, Luke–John
Edited by Samuel Prideaux Tregelles

The Greek New Testament
Edited from Ancient Authorities, with Their Various Readings in Full, and the Latin Version of Jerome
Volume 1, Matthew–Mark
Edited by Samuel Prideaux Tregelles