Prodromus of the Metallurgical Library

BIBLIOTHECA METALLICA.

esteem, that they apply everything to obtain it. Yet this is such a strange jewel that few have it for sale, and it is kept just as secretly as the great secret of the Lapide Philosophorum Philosopher's Stone, which is handed from hand to hand only to the Adeptis those who have achieved the Great Work. However, after it fell into our hands, we did not want to begrudge the rest of the human race such a great good, nor allow such a treasure to remain buried. So much for the preface.

Joh. Conrad. Barckhusen, Pyrosophia Fire-wisdom, succinctly and briefly touching upon Jatrochymiam medical alchemy, metallurgical matters, and chrysopejam the art of transmuting base metals into gold. 4to, Leiden, 1698, with illustrations.
M. P. Barra, Abus de l'Antimoine & de la Saignée Abuse of Antimony and Bloodletting. 12mo, Lyon, 1664.
D. Casp. Bartholini, Royal Professor of Copenhagen, on the lapide nephritico kidney stone (the mineral jade). 8vo, Copenhagen, 1627; also appears in Opuscul. IV. singular. Four special minor works, etc. 8vo, ibid., 1628.

• The same, Opuscula IV. Singularia de Unicornu, de lapide nephritico, &c. Four special minor works on the unicorn, on the kidney stone, etc. 8vo, Copenhagen, 1628. 16 sheets.

The same, dissertation on Glossopetris tongue-stones (fossilized shark teeth), 12mo, Copenhagen, 1706. See Nov. Liter. Mar. Baltici New Literature of the Baltic Sea, year 1706, page 278.
The same, book on perfectly mixed inanimate bodies or metals, stones, and intermediate minerals. 8vo, Copenhagen.
Erasm. Bartholini, experiments on Icelandic Crystal, etc. 4to, Copenhagen, 1690, with illustrations.

• • 1670.
    The same, observations on Icelandic Crystal. See Miscell. N. C. Dec. I. An. II. obs. 169 Miscellanea of the Nature-Curious, Decade 1, Year 2, observation 169.