On the other hand, there are some substances which, tasted in small quantities only, appease hunger and thirst, and keep up the strength, such as butter, for instance, cheese made of mares’ milk, and liquorice. But the most pernicious thing of all, and in every station of life, is excess, and more especially excess in food; in fact, it is the most prudent plan to retrench everything that may be possibly productive of injury. Let us, however, now pass on to the other branches of Nature. SUMMARY.—Remarkable facts, narratives, and observations, two thousand, two hundred, and seventy. ROMAN AUTHORS QUOTED.—M. Varro,[372] Hyginus,[373] Scrofa,[374] Saserna,[375] Celsus Cornelius,[376] Æmilius Macer,[377] Virgil,[378] Columella,[379] Julius Aquila[380] who wrote on the Tuscan art of Divination, Tarquitius[381] who wrote on the same subject, Umbricius Melior[382] who wrote on the same subject, Cato the Censor,[383] Domitius Calvinus,[384] Trogus,[385] Melissus,[386] Fabianus,[387] Mucianus,[388] Nigidius,[389] Manilius,[390] Oppius.[391] FOREIGN AUTHORS QUOTED.—Aristotle,[392] Democritus,[393] Neoptolemus[394] who wrote the Meliturgica, Aristomachus[395] who wrote on the same subject, Philistus[396] who wrote on the same subject, Nicander,[397] Menecrates,[398] Dionysius[399] who translated Mago, Empedocles,[400] Callimachus,[401] King Attalus,[402] Apollodorus[403] who wrote on venomous animals, Hippocrates,[404] Herophilus,[405] Erasistratus,[406] Asclepiades,[407] Themison,[408] Posidonius[409] the Stoic, Menander[410] of Priene and Menander[411] of Heraclea, Euphronius[412] of Athens, Theophrastus,[413] Hesiod,[414] King Philometor.[415] BOOK XII. THE NATURAL HISTORY OF TREES. CHAP. 1.—THE HONOURABLE PLACE OCCUPIED BY TREES IN THE SYSTEM OF NATURE.