[In 4 Books, with engraved title and plates; pp. 56.]

Timbs, John, F.S.A. Stories of Inventors and Discoverers. 12mo. 1860.

Tredgold, Thomas, C.E. The principles and practice, and explanation of the Machinery used in steam navigation. Compiled by ——. 2 vols. 4to. 1851.

Trithemii, Joannis. Libri Polygraphiæ VI. Small 8vo. Argentinæ, 1600.

[There is also a quarto edition, with diagrams.]

Tymme, Thomas. A Dialogue Philosophical, wherein Natures secret closet is opened, and the cause of all motion in nature shewed out of matter and forme, &c. 4to. 1612.

Ubaldi, Guidi, i machionibus montis in duos Archimedis æqueponderantium libros praphrasis scholiis illustrata. Folio. Pisauri, 1588:

—— è marchionibus montis. Mechanicorum Liber. Pisauri, 1577.

—— Mechanica. Fol. Pisaur. 1577. And Venice, 1615.

—— De Cochlea. Fol. Venice, 1615. pp. 160.