Ancient Science resources

http://galileoandeinstein.physics.virginia.edu/lectures/lecturelist.html (lectures and notes from a course on science in history)

http://www.mlahanas.de/Greeks/Greeks.htm (links to all sorts of greek science, by topic)

Plutarch, Sentiments concerning nature with which philosophers were delighted

http://www.mlahanas.de/Greeks/Plutarch/Nature/PlutachNature.html (writings by Plutarch on natural philosophy and natural philosophers) EXCELLENT!

http://ebooks.adelaide.edu.au/p/plutarch/nature/ (this version of plutarch is more explicit as to where it come from)

Music

The Harmonics of Aristoxenus
http://www.archive.org/details/aristoxenouharm00arisgoog

The Manual of Harmonics of Nicomachus
available at amazon and other places, isbn: 0933999437

Source readings in music history, Volume 3
has readings from Plato, Aristotle, and several other Greeks.

http://books.google.com/books?id=ZtCYwFm2mTwC&pg=PR5 (limited-page-preview)

Physics

Aristotle, Physics