About the ETGS Publications CD-ROM...
The publication files are in .PDF format and can be read using Adobe Acrobat Reader. This program is available on the ETGS Publications CD-ROM. If you do not already have Reader installed on your hard drive, access the ACROINSTALL (ACROINST) directory on the ETGS CD from your CD-ROM drive. Locate the subdirectory for your particular platform (Windows 3.1, Windows 95 or NT, Mac, or Unix) and activate the appropriate icon. After Acrobat Reader is installed you select and load files just as you would for Word or Excel. If you have internet access it is recommended that you access www.adobe.com and download Reader (it's free) directly from Adobe. The most recent release of Reader is available there.
Activate Adobe Acrobat Reader and select the file named Welcome.pdf in the root directory of the CD-ROM. This is the first port in the successful navigation of the ROM. From this file you can select whichever of the volumes you wish to access. Clicking on the ARROW beside the volume name on the Welcome page will take you directly to the Table of Contents (TOC) for that volume. In the case of the field study publications the first page of each TOC is an index map of the fields covered in that particular volume. You can move immediately to the field study by clicking the mouse directly over the field name on the index map, or you can select the field study by clicking the mouse on the field name in the TOC list. Return to the Table of Contents by clicking on the command in the Bookmark column (see below).

If your version of Reader has three icons on the left side of the tool bar at the top of the screen, these are crucial to the efficient operation of the technology behind Adobe Acrobat Reader.
1) The left icon is for full-page display. This is the default selection and is the best view for reading pages on the screen.
2) The center icon when activated displays both page and bookmarks. Bookmarks will appear in a column on the left side of the screen. These are commands that can be executed by mouse clicks. The only bookmark we made use of was a navigation aid for returning either to the local Table of Contents or to the Welcome page.
3) The right icon when activated displays both page and thumbnails. These are miniature images of the page and will appear in columnar form on the left side of the screen. Thumbnails make it easy to navigate within an article. Point and click anywhere on any of the images and the page display will automatically select that area for viewing. (If your Reader version does not have the three icons, you should be able to call the thumbnails and bookmarks to the screen by punching F5 or F6).

Another important tool is the binocular on the right side of the toolbar. (Some Reader versions have two binocular icons). The binocular icon controls the search commands. If there are two icons, the smaller one searches the entire directory structure, the larger searches only the displayed document. If there is a single binocular icon only the displayed document can be searched. When using the directory search for the large icon you must activate the 'index' file on the root directory of the CD. From the Search window select Indexes and then push the ADD button. Browse through the directory structure to the ETGS directory on the CD and select the .pdx file "index". Hit OK. You only have to do this the first time the search is used.

Each book is filed in its own directory named for the year of its publication. The books are broken into separate files following the outline of the table of contents. The files are named using the page number of the particular volume in which they appear, for example 510011, page 11 of 1951. This may appear a bit strange at first appearance. The CD-ROM file storage allows for only the standard 8 character file names. Selecting files from a list of eight alpha characters can also be challenging. Reference to a printed copy of the table of contents should assist in locating individual field or chapter names on the CD. With the proper use of the navigation instruments built into Adobe Acrobat Reader any confusion over locating specific files should be kept to a minimum.

The 1989 volume has updated (thru 1996) field cumulative production figures. We elected to insert new pages of production figures rather than to attempt to remove the old figures from the publication. Each production summary is located as closely as possible to its appropriate place in the text.

The 1951 volume had several field studies with fold out maps or cross sections. We felt that if these illustrations were removed and shot down to 81/2 x 11 format that too much detail would be lost for display on the computer screen. A paper printout of these reduced-size images would be equally useless. We scanned the maps as full-page panels and we suggest printing these files and taping the pages together for those interested in viewing the whole picture at one time.

Please note that there are pages in all of the volumes which will load sideways on the computer screen. This is for ease of reading on the computer. If you print these files the pages will print in a vertical format just as they appeared in the original text.

We have found that in all of the publications that the scanned images are higher quality than the original text. The shortfall is that the scanning and interpreting programs induce errors into the text. We suffer no delusions believing that we caught all of these induced errors. Please notify us of all text errors and they will be corrected for future releases. We do not assume any responsibility for the quality of the information contained in the articles, only for the quality of the digitized text.

We welcome any comments, suggestions and submissions. The purpose of this project is to compile an electronic atlas of Geological and Petroleum Engineering data for the northeastern part of Texas. The hope is to keep this information available at a low cost by using volunteer labor as needed.

Volunteers are encouraged to submit papers and Master's or Ph.D. thesis's that might be included. We are particularly interested in unpublished works that might not otherwise be available to the public. Visit our Web site at www.tyler.net/etgs. E-mail us at etgs@tyler.net. We hope to update these volumes, electronically only, in the future. Hardbound copies of the 1964, 1984 and 1989 are available as of 10/1/98; please refer to the Web site for pricing details.

In conclusion we would like to acknowledge the invaluable assistance given by Michael McDonald of Pinehurst Technologies of Montpelier, Virginia. Mr. McDonald is a professional in the field of electronic publishing and he took the time to offer comments, criticism, and advice. His guidance made it possible for us to utilize the full potential of the technology behind Adobe Acrobat Reader. Many thanks, Michael.

Publications Committee October, 1998

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