Biographical references: BBA: I 671, 121-122. • Munk, W., The roll of the Royal College of Physicians of London. 2nd edition. London, 1878. 3 vols. • Watt, Bibliotheca Britannica, 1824. • WBI.

1. English, 1664.
Mercurius centralis; or, a discourse of subterraneal cockle, muscle, and oyster-shels, found in the digging of a well at Sir William Doylie's in Norfolk, many foot under ground, and at considerable distances from the sea. Sent in a letter to Thomas Brown ... by Tho. Lawrence ... London: J. Collins, 1664.

8°: 5 p.l., 94, one illustration.

Very scarce. Paleontology; geology.

Bibliographical references: LKG: XVII 121.

2. English, 1668.
A Discourse of Subterraneal Treasure Occasioned by some Late Discoveries thereof in the County of Norfolk, and Sent in a letter to Thomas Brown M.D. ... London, Printed for J. Collins, 1668.

12°: [10], 94, [4] p., illustrated. "To the reader" signed: T.L.

Very scarce. Second edition. Paleontology; geology.

Bibliographical references: Wing: L-685.