Pitcher Plants of the Old World has 1399 pages.
Pitcher-Plants of Borneo has 171 pages.
The Pitcher Shower has 202 pages.
The Carnivorous Plants has 352 pages.
Carnivorous Plants of Australia has 202 pages.
Terminal World has 487 pages.
The Holder of the World has 286 pages.
The Eye of the World has 688 pages.
The Crystal World has 221 pages.
Lord of the World has 352 pages.
A World of Hurt has 312 pages.
Cartridges of the World has 552 pages.
Logan's World has 149 pages.