[307] Categor.
[308] On Birth and Death, ii., 1.
[309] Auscult. Phys., iv.
[310] Simplicius, Comment. in Auscult. Nat., iv.
[311] Ammonius, Comment. in Porphyr. Introd.
[312] Ibid.
[313] Theophrastus, On Fire.
[314] Ibid.
[315] Cicero, Quæd. Acad., i., 6.
[316] Cicero, Quæd. Acad., i., 7.