elsewhere[1], Aristotle, in his criticism of the theory adopted
by Diogenes and Anaxagoras to account for the respira-
tion of fishes, has clearly distinguished the one from the
other. He objected also to Timæus and some others who
had maintained that expiration must precede the other.
Enough, however, that he perceived, although unac-
quainted with the parts on which odours impinge, or the
organ by which they are made sensible, that they could
gain access to the sense only through inspiration.
CHAPTER VIII.
Note 1, p. 100. Sound of the actual kind is the, &c.]
As sound is the result of percussion, the passage implies
something to be percussed, as well as something in which
that which percusses is to move; but what that some-
thing is in which percussion is to be made is not explained.
Some commentators, as Simplicius, have considered the
words ἐν τινι to imply, "the air which is interposed
between the sonorous body and the sense," and which,
but for the contradictory opinions of that age with
respect to the air, might be at once accepted as its
meaning; and even taken as some special medium, as has
been suggested, it still may signify a body of air. We
- ↑ De Respiratione, 2. 3.
