About the Kilgour collection ...

See also ... Creating the HTML version...


Your exploration of the Collected Papers of Frederick G. Kilgour begins on the main screen or "home page", in this case file "aakghome.htm". On the main screen, under the picture of Mr. Kilgour, are several navigation buttons. These labeled buttons link you to both volumes of the Collected Papers, and other buttons which you will use to navigate through the them. The buttons on the main screen are:

This button takes you to the opening screen of the first volume of the collection, "The Early Years". Next to it is this button, which takes you to the opening screen of the second volume of the collection, "The OCLC Years". And, at the far right is the button which you clicked to reach this page.

Clicking on this miniature representation of the Preservation Resources logo will lead you to a page which will tell you about the company which created this electronic version of the Collected Papers of Frederick G. Kilgour.

The main screens of each volume contain buttons which connect you to pages representing the Table of Contents, and the Index for that volume. As with all HTML documents, underlined and colored text indicates a clickable link. For example, clicking on either the title or the page number in a Table of Contents listing will take you to the first page of that title. In the indexes, page number references following listings are each linked to the page itself.

This button, found on the title screens for each of the two volumes will return you to the main screen or home page of this work.

Throughout your exploration of this wide-ranging collection of writings, you will always have access to the title screen for the current volume, its Table of Contents, and its Index. Additional navigation aids will appear where appropriate. When viewing a particular bilevel page image in the collection, and buttons allow you to move to the previous or next pages in the volume. Clicking on the page image itself will take you to either a higher resolution image of the page or return you to a lower resolution. Where gray scale images appeared in the original text, these images will appear as tiny thumbnail images above the page images. Clicking on the thumbnail image will take you to the smaller of two available resolutions of the gray scale image. When viewing the gray scale image you can access a higher resolution of the same image by clicking on the image itself, and return to the lower resolution image in the same way. This button, appears above each gray scale image, and will return you to the bilevel image of the page.

Creating the HTML version.

As the first step in creating this HTML version of the Collected Papers of Frederick G. Kilgour, Preservation Resources first filmed the entire two-volume set to 35mm archival microfilm using our CTF (Continuous Tone Film) technique, and a Herrmann & Kraemer planetary camera. (more about Preservation Resources and preservation microfilming) The filming was done in the cine mode, one page per image, at a reduction of 9:1.

The microfilm was then scanned using a Meckel 400 bilevel scanning station at a resolution of 300 dpi (dots per inch) relative to the original document, producing 830 high resolution images. Each page image was opened in image editing software for cropping to size and deskewing where necessary. The high resolution images were then renamed and saved to disk. Each image was then reduced in size to 50% of the original (150 dpi) and saved as another file. The high resolution was then again reduced in size, this time to 30% of the original (90 dpi) and saved as another file. When viewing the HTML version of the collection, the user is accessing the 30% image and the 50% image. The images were reduced for quicker access and viewability. A full, 300 dpi page image would measure approximately 32" x 44" when displayed on screen and necessitate a great deal of scrolling to view the document. The reductions were chosen to provide page identification ( 30%) and full readability (50%).

The various papers making up the two volume printed version of the Collected Papers of Frederick G. Kilgour contain a number of half-tone, grayscale illustrations, which reproduce very poorly in a bilevel scan. Therefore these images were scanned again from the same CTF film using a Kodak Photo CD scanning station, producing 43 high resolution (2,000 x 3,000 pixel), 24-bit color images. Each of these images was opened in image editing software and first reduced to 8-bit grayscale, then cropped to the illustration and deskewed as necessary, and separated into separate images where two illustrations appeared on a single page. In the end, 45 illustration images were created. Each image was corrected for the proper levels of gray and dynamic range, contrast, etc. The resulting images were reduced in size similarly to the bilevel scans, resulting in 50% and 30% images saved in the JPEG file format at the high quality/low compression setting.

In total, 1,750 image files representing the 50% and 30% page and illustration images have been included for viewing the Kilgour collection. An HTML document then had to be written to display each image, and link it to previous and next images, and to other navigational aids. The Tables of Contents and Indexes had to be written in HTML format, and the individual listings in each linked to the proper image files. Graphics for navigational buttons also had to be created, as well as main screens. Altogether, over 15,000 hypertext links are contained within this HTML version of the works of The Collected Papers of Frederick G. Kilgour.