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(1) I made some of these links
go to secondary index pages so that there wouldn't be too much
information on any one webpage. (2) It's generally not possible to resolve the fine structure of the fossil flora in the full-page index copies of most of the images, so I've made it possible to view the images at greater resolution by right-clicking on them. (3) In general, most of the high resolution scans are at 300 dots per inch, three times the resolution of the full-page images. Some of the very small fossils were scanned at 600 dots per inch. (4) I made every effort with the flatbed scanner (Epson Perfection 2400) and with the image editor (PhotoshopElements) to maximize the visibility of the fine structure in the original photographic prints by avoiding whited-out or all-black areas after my adjustments to the contrast and brightness. As a result, some of the background paper in the scans now has odd contrast. (5) I edited out overlapping information from the high-resolution scans and filled in missing letters hidden by the corner mounts, thereby avoiding damage to the prints from removing them from the mounts. (6) In the many years since this manuscript was prepared by George Langford, Sr., notes on the presence of other collections have been prepared by others; and the fossils of the Mazon Creek collection at the Illinois State Museum have been scanned and digitized and are available in an on-line database. I met Brian Bisbee at the museum while he was actually in the process of doing this. Some of the very same fossils as GL prepared and photographed for this manuscript have been scanned into that database. George Langford (III), Editor,
April 2010.
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