The free downloaded contents pages are in pdf format (about 100KB each).
Tip. If you RIGHT click any download and Save Target As... you will keep a copy on your own computer which you can read at leisure. It also usually works as an alternative when Acrobat fails to open the file directly with a LEFT click.
Contents Pages of Individual Chapters
Ch. 3.0 Papilionidae Introduction (contains essential introductory material for chapters 3.1 to 3.3), 8 pages, download
