There is another tree[612] also, that contributes to the manufacture of unguents, by some persons known under the name of elate, but which we call abies; others again call it a palm, and others give it the name of spathe. That of Hammonium is the most esteemed, and that of Egypt next, after which comes the Syrian tree. It is only odoriferous, however, in places that are destitute of water. The tears of it are of an unctuous nature, and are employed as an ingredient in unguents, to modify the harshness of the oil. CHAP. 63.—CINNAMON OR COMACUM. In Syria, too, is produced that kind of cinnamon which is also known as comacum.[613] This is a juice which is extracted from a nut, and very different from the extract of the real cinnamomum, though it somewhat resembles it in its agreeable smell. The price at which it sells is forty asses per pound. SUMMARY.—Remarkable facts, narratives, and observations, nine hundred and seventy-four. ROMAN AUTHORS QUOTED.—M. Varro,[614] Mucianus,[615] Virgil,[616] Fabianus,[617] Sebosus,[618] Pomponius Mela,[619] Flavius,[620] Procilius,[621] Hyginus,[622] Trogus,[623] Claudius Cæsar,[624] Cornelius Nepos,[625] Sextus Niger[626] who wrote a Greek treatise on Medicine, Cassius Hemina,[627] L. Piso,[628] Tuditanus,[629] Antias.[630] FOREIGN AUTHORS QUOTED.—Theophrastus,[631] Herodotus,[632] Callisthenes,[633] Isigonus,[634] Clitarchus,[635] Anaximenes,[636] Duris,[637] Nearchus,[638] Onesicritus,[639] Polycritus,[640] Olympiodorus,[641] Diognetus,[642] Nicobulus,[643] Anticlides,[644] Chares[645] of Mitylene, Menæchmus,[646] Dorotheus[647] of Athens, Lycus,[648] Antæus,[649] Ephippus,[650] Dion,[651] Demodes,[652] Ptolemy Lagus,[653] Marsyas[654] of Macedon, Zoilus[655] of Macedon, Democritus,[656] Amphilochus,[657] Aristomachus,[658] Alexander Polyhistor,[659] Juba,[660] Apollodorus[661] who wrote on Perfumes, Heraclides[662] the physician, Archidemus[663] the physician, Dionysius[664] the physician, Democlides[665] the physician, Euphron[666] the physician, Mnesides[667] the physician, Diagoras[668] the physician, Iollas[669] the physician, Heraclides[670] of Tarentum, Xenocrates[671] of Ephesus, Eratosthenes.[672] BOOK XIII. THE NATURAL HISTORY OF EXOTIC TREES, AND AN ACCOUNT OF UNGUENTS. CHAP. 1. (1.)—UNGUENTS—AT WHAT PERIOD THEY WERE FIRST INTRODUCED.