Flexibility of the available digital images:
The digital images can be accessed by available paint programs and the
richness of the detail examined and modified. For instance the above
illustrated 1280x1024 screen paint program window holds a 1:5 zoomed Plate
from Strecker (1877) and a 1:1 cut from that plate which has been enhanced
by removing the yellowing of the book paper. The large digital image
format is not available over the WWW but is made available to interested
individuals via a CD-ROM, Catocala Moth History
(Professional edition).