If you come to this page, you are following a very old link to a defective and partial version of this classic reference work. There are now two online versions of that text that should be preferred:

• The "Perseus" project version: http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0001
• Version provided by Professor William Harris of Middlebury College: http://www.middlebury.edu/~harris/AG_1.html

A fresh printed version is now available as well from Focus Press, seen through the press by Anne Mahoney.