Maintained by The Texas Speleological Survey

TexBib is a searchable bibliographic database for Texas caves. It is primarily the product of over 40 years of work by James Reddell with contributions from other TSS directors. Jerry Atkinson currently manages the TexBib project. David McKenzie wrote Reselect, the search engine program which is downloadable with the bibliography below. The bibliography can be searched by author, keywords, dates, or combinations. TexBib entries are from all available Texas caving newsletters, plus national and international newsletters, books, science journals, newspapers, magazines, theses, dissertations, and any other published sources TSS can find. TexBib currently contains over 13,400 bibliographic entries dating from 1866 to the present and is regularly updated. If you have suggestions, questions, or additional entries, contact Jerry Atkinson.

TexBib_2010-12-10.exe (2.3 MB)
Databases with Reselect v1.20 search program. In addition to TEXBIB, this installation includes a preliminary version of James Reddell's Bibliographic Guide to New World Cave Biology, or NWBB.

Database compilation dates:
TEXBIB: 2010-12-08
NWBB: 2008-08-24

No special setup is required. When you run the self-extracting archive, you'll be prompted for a destination folder (default: C:\TexBib). Specify either a new folder or your existing TexBib (or Reselect) program folder. (This will replace older file versions.) Upon installation, an icon named TexBib should appear on your desktop. The program requires that you be running MS Windows with MS Internet Explorer 5 (or above).

This site will be periodically updated, both with new database compilations and new builds of Reselect, which is still being developed. When running Reselect, you can select Help | About to see the compilation dates for the databases you currently have installed.

Please send your suggestions regarding the TEXBIB bibliography to its current editor:
Contact Jerry Atkinson

For comments or questions regarding the Bibliographic Guide to New World Cave Biology (NWBB):
Contact James Reddell

For information on Reselect or for help with installation:
Contact David McKenzie


Version 2 B8 Release, Build 2013-05-25
The Walls download site is hosted by the Texas Speleological Survey. Additional program information, along with a link to the most recent Walls build, will normally be available at the TSS Web site.

To review the changes in the most recent program update, see the RECENT BUILD HISTORY section below. Because of the way Walls is being developed, it's almost certainly the case that the latest build is an improvement over the previous build and compatible with existing project data. The build date is displayed in the program's About box.

To download the Walls v2 B8 setup program, select this link: Walls_setup. When the download is complete, run Walls_setup.exe and follow the instructions. If upgrading, you can use your existing Walls program directory without explicitly uninstalling the earlier version. You shouldn't have to purge work files and lose project-specific option settings. The prior official release is still available here, but if you ever decide to revert back to an older version of Walls you'll have to uninstall the newer version first.

A printable PDF manual, essentially a copy of the online help, is installed during setup and is also available separately: Walls manual. All that's missing in the manual are the pop-up windows with short descriptions.

Also part of the installation are two sample data sets that demonstrate SVG round tripping, perhaps the most significant new component of recent releases. If you run the Walls setup under Windows Vista and choose the default program location, the sample projects will be installed in Vista's public folder, normally C:\Users\Public\Walls Projects. If you're running Windows XP they are installed in Projects, a subfolder of the chosen application folder. After opening Kaua North Maze.wpj (the setup should do this when it closes), read the contents of the first project tree item, a text file that describes the sample data and serves as a brief introduction to Walls2D and SVG map production.

A second sample project, Tutorial.wpj, can serve as a getting started guide. While it also has an SVG source file, its main purpose is to illustrate basic features of a georeferenced data set.

Walls incorporates an SVG map viewer, Walls2D.exe, that's launched for viewing exported SVG map documents. Much of its functionality, however, requires the presence on your system of Adobe's free SVG viewer plug-in, ASV 3. If you don't already have ASV installed, please download and run the executable setup file using this direct link to Adobe's download area: SVGView.exe. The setup is quick and there are no options.

IMPORTANT NOTE: Reinstallation of the plug-in will likely be required after a first-time upgrade to Internet Explorer 9. Walls2D should inform you of this requirement, in which case running SVGView.exe again is all that's necessary.

Although Adobe has ended official support of the viewer, the ASV EOL FAQ states the following : Adobe does not currently have plans to remove Adobe SVG Viewer from the download area. Adobe recognizes that customers have built Web applications that depend on ASV being available for download, and although Adobe does not plan to develop ASV further, we plan for the existing versions to be available for download as long as our customers rely on them.

The FAQ also suggests that the viewer may have limitations when running under Windows Vista, such as the View Source context menu option not working. (This feature has in fact worked on systems running Vista and Windows 7 64-bit.) The limitations are apparently minor and don't affect the functioning of Walls2D.

Version 2, B8 Release, Build 2013-05-25
The VRML export function was modified to output point clouds defining cave passage walls. The lines connecting the points to a station or measuring device are also optionally exported. Joe Mitchell, who is developing an electronic cave mapping device (Caveatron), assisted by designing a data format and providing files generated by the prototype. The VRML viewer, Walls3D, was also updated to display higher-quality (anti-aliased) lines and points.

Version 2, B8 Release, Build 2013-01-29
Following a suggestion by Peter Sprouse, the SVG export feature was enhanced to support merging of artwork from two separate SVG files. This represents a major upgrade to the program's roundtripping capability. For more information see "SVG Export Dialog" in online help. Live paint objects in Adobe Illustrator documents should now be adjusted properly during roundtripping. Aaron Addison's work prompted this fix. Also, SVG's <pattern> element is finally supported thanks to Jeff Bartlett. This allows use of pattern fills for objects in any adjustable layer. See help topic "Live Paint and Pattern Support." In a merged SVG export, if a source SVG contains identifiers for vectors missing in the survey data, up to 500 such cases will simply be ignored. Whether or not this limit is reached, the orphaned vectors are listed in a log file so they can be reviewed. It's possible that surveys were inadvertently excluded from compilation. Or a few vectors could have become obsolete due to data corrections, in which case relying on the shifts in other vectors for artwork adjustment and touching up manually is usually all that's required. Other SVG export improvements include displaying adjustment details whether or not the Walls2D viewer is launched. As suggested by Jeff Bartlett, the survey vector experiencing the greatest endpoint coordinate change is listed along with the amount of shift. A bug was also fixed that caused gradient fills to be removed if they were encountered in a sym group, such as in passage cross sections. When the units of exported shapefiles are specified as Lat/Long (the new default), the coordinates that appear in the attribute table will have seven decimal places of precision. Also, the elevations (Z components) of 3D shapefiles are scaled from meters to degree units as required by the format definition. For best compatibility with other software you should specify UTM units for 3D shapefiles.

Version 2, B8 Release, Build 2011-04-12
This build was created with a new compiler version that targets only systems running Windows XP SP2 or later. If setup tells you that your version of Windows is incompatible, you can install the previous Walls build that's available on the website. Please let me know if you found this to be necessary. The Walls2D SVG viewer will notify you if a new install of Adobe's SVG viewer is required due to Internet Explorer being pgraded to version 9. This IE upgrade, infortunately, disables the viewer installation, causing the prior version of Walls2D to produce a "script error" upon startup. A compiled dataset can straddle UTM zone boundaries, with fixed points defined in more than one zone. For completeness, the Universal Polar Stereographic (UPS) coordinate system is also seamlessly supported. The geographical calculator has been enhanced in multiple ways. It performs coordinate conversions across UTM/UPS, UTM zone, and equatorial boundaries. The intensity of the magnetic field's horizontal component is displayed alongside declination. You can transfer coordinate pairs via the clipboard, the supported formats being suitable for pasting directly into the search boxes of online mapping programs. The geodetic datum that's initialized by default is WGS84 instead of NAD27. (See the new sections under Geographical Calculator.)

Options to produce either UTM/UPS or Lat/Long coordinates has been added to both the coordinate listing and shapefile export dialogs. For shapefiles, Lat/Long degrees is now the default coordinate type. Miscellaneous fixes: An SVG export involving a merged Illustrator 11 file could on occasion produce an invalid SVG that Illustrator couldn't open. Thanks to Stan Allison for reporting the problem. As suggested by Bob Osburn, gradient color assignments, such as color-by-depth, are recognized when exporting SVG vector layers. Jason Richards discovered that network pathnames were not being handled properly, preventing access to project datasets on a local network.The undo/redo feature in the text editor, if used in a certain way, could cause a program shutdown. The Geographical Reference page would sometimes display the datum name incorrectly. Modules wallmag.dll and wallzip.dll have been removed, the code now part of the exe.

Version 2, B8 Release, Build 2010-05-14
The geographical calculator module included with the last build (wallmag.dll, 2010-01-14) has a defect that causes incorrect magnetic declinations to be computed for a 5-year period beginning in 2005. The effect is that a correct declination computed for Jan 2005 is also returned for subsequent dates, up until Jan 2010. Thereafter, correct values based on the IGRF-11 model are returned. The error introduced will depend on location. For example, in central Texas the model's declination, instead of remaining constant, actually decreased a total of 0.6 degrees over that period. This build includes a repaired calculator module that should now agree with the online implementation at the NGDC web site. Thanks to David S. Taylor and Jeff Bartlett, respectively, for discovering and reporting the discrepancy.

Version 2, B8 Release, Build 2010-01-14
Igor Teleshman discovered that "percent grade" inclination units were being incorrectly processed as proportional to the angle instead of proportional to the tangent of the angle. The effect, unfortunately, was an easily overlooked systematic error in situations where "Percent" was specified for a V, VB, IncV, or IncVB units override. For example, a 5% grade is 2.86 degrees, not 2.25 degrees. This build incorporates the latest International Geomagnetic Reference Field (IGRF) model, which covers the period Jan 1, 1900 through Dec 31, 2014. Also, a problem was fixed that caused the geographical calculator to stop working properly when the previous model expired on Jan 1, 2010. You can compare the declinations computed by the calculator with output produced by the IGRF calculator at the National Geophysical Data Center (NGDC) web site. As suggested by Bob Osburn, the Editor Options dialog now has settings to control the initial width and height of an opened editor window. The default width was increased from 60 to 80 characters. Several minor bugs were fixed, one being the occasional display of an empty or corrupted datum name on the Geographical Reference page of the Properties dialog.

Version 2, B8 Release, Build 2008-12-26
Several Vista compatibility issues are addressed in this build. When run under Windows Vista the Walls setup program stores the sample projects in Vista's "Public" folder if the "Program Files" folder is chosen as the install location. This is to allow read/write accessibility for all users. Also, the SVG map viewer, Walls2D, no longer uses the application folder for temporary files. Under Vista that would disable the toolbar buttons that control SVG layer visibility. See the above note regarding the Vista compatibility (and future availability) of Adobe's SVG viewer.

Version 2, B8 Release, Build 2008-08-22
The substantial change in release B8 is the use of a different file extension for project script files. The required extension is now WPJ instead of PRJ. The renaming was done to avoid conflicts with the projection files used by modern GIS software. The transition should be entirely automatic. Walls will still recognize the PRJ files created by earlier releases but will prompt for confirmation and automatically change their extensions to WPJ in the process of opening them. New compiler versions (both for code and online help) were used for this release. Windows Vista compatibility has been improved, for example the pop-up windows in online help should now function properly under Vista. You'll find a printable version of the online help, Walls_manual.pdf, in the doc subfolder. There are several new or revised topics, mostly related to SVG round tripping. When exporting UTM shapefiles for datums NAD27, NAD83, and WGS-84, the program now produces ESRI-compatible projection files with extension PRJ. The presence of a PRJ component greatly simplifies adding shapefiles to GIS projects, allowing for the automatic conversion of coordinates to a different datum or map projection when it's required. Miscellaneous minor fixes. An option to suppress the averaging of foresights and backsights was added to the data format due to a suggestion by Bryan Signorelli.

Version 2, B7 Release, Build 2007-09-23
The SVG export function was revised to work around an annoying problem present in all recent versions of Adobe Illustrator (especially CS3 it seems), which is the tendency to occasionally rename an object or layer unnecessarily when writing an SVG. For example, w2d Survey might be renamed w2d Survey_1_, even when it isn't necessary for insuring ID uniqueness (an SVG requirement). This would cause Walls error messages such as "invalid layer name" or "no vectors in view", the easiest fix being to edit the SVG manually. To get around this bug, suffixes like "_1_" are now removed during the processing of w2d layer names and vector IDs. Two additional levels of prefixing were implemented with directives #PREFIX2 and #PREFIX3. This simplifies the merging of large surveying projects, where the original level-one prefixes (field book numbers, for example) are not necessarily unique and would cause conflicts. Jim Borden suggested this enhancement. Miscellaneous fixes. In earlier builds, clicking the "Data summary" toolbar button without the review dialogs being open would cause the program to close unexpectedly. The program should now start up noticeably faster.

Version 2, B7 Release, Build 2006-06-02
IMPORTANT: If you downloaded a copy Walls from this site anytime between 2006-05-23 and the time of this build, you must optain this update to correct an issue with first-time project compilations (which would fail with an error message). The SVG merge function was fixed to properly support character entities representing Unicode characters. Stan Allison helped discover this limitation. A few other improvements were made to the SVG export module, now at version 1.13. The project management features were improved based on suggestions from Jim Borden and Scott House. Duplicate shots are now optionally logged. It's now possible to delete data files associated with project tree branches. The text editor's search and replace dialog is now properly disabled for read-only files. Miscellaneous fixes: The format of exported 3D shapefiles was not strictly correct, potentially causing problems with readers. The button "Flag Symbols" on the Segments page was re-enabled to open the Flag and Marker Symbols dialog. The report option to organize stations by flag name now prints the flag name headings correctly.

Version 2, B7 Release, Build 2005-12-01
The SVG-related features, including the tutorial project's source SVG, Polygon_w2d_mrg.svg, were updated to support roundtripping with the latest Illustrator version, 12 (or CS2). For details, see Roundtripping SVG Maps - Instructions for Illustrator Users in the help file. The modules wallnet.dll and wallsrv.dll were eliminated, their code now part of Walls32.exe. Also, to avoid incompatibilities with some laptop versions of Windows, the program files are no longer compressed. The link to the Walls home page in the About box was updated.

Version 2, B7 Release, Build 2005-03-10
This release fixes a bug (discovered by Jim Borden) that causes text to sometimes not scroll properly in an editor window. Miscellaneous help file changes were made. Victor Komarov corrected an error in the Data Screening Tutorial topic.

Version 2, B7 Release, Build 2005-01-10
The latest version of the International Geomagnetic Reference Field (IGRF) was incorporated. This is the mathematical model used to estimate declination when the geographical calculator is active or when declinations are computed automatically during data processing. The model now covers the period Jan 1, 1900 through Dec 31, 2009. A multi-level undo/redo capability was added to the text editor. This is accessed in the standard way: from the toolbar, edit menu, or with keystrokes Ctrl-Z and Ctrl-Y. It's now possible to reverse all changes made to a file since it was opened. An option to enlarge LRUD polygons by a specified amount was added to the Passage Display Options dialog as suggested by Mark Passerby. This can be used in connection with SVG roundtripping to produce gradient-colored passage floors. Making the polygons larger allows portions outside the drawn passage walls to be clipped so that floor regions are entirely covered.

Version 2, B7 Release, Build 2004-12-17
Support was finally added for the manipulation and highlighting of traverse chains in the Geometry and Map review pages. If you're already somewhat familiar with the data screening tools in Walls, you can review a documentation excerpt to get a sense of what this entails. Improvements were made to the report dialogs and their methods of access via tool bar and file menu. Coordinate reports can be restricted to data appearing within the current view frame. When the program sorts project tree branches and station names in reports, strings of digits are handled properly -- for example, "A30" comes before "A100". To help prevent inadvertent editing, project files can be compiled, opened, and navigated in read-only mode. Jim Borden is largely responsible for these changes.  There is a new item on the right-click context menu for screen maps named Resize map frame. It allows us to quickly change the overall map size (resolution) without affecting the view or other map attributes. The change can apply to just the active map window or can be saved as the default for new map windows. To aid computer map drafting, an SVG export option is now available that places cross section rectangles alongside LRUD bars. This can occur only for LRUD specifications with a "C" argument following the last dimension number or facing azimuth. Examples: *1,3,1,0,c*, <.5,1,5,1,270,C>. The check box for this option is in the Advanced SVG Export Settings dialog. (Thanks to Mark Passerby for detailing this feature.) Backup archives now store items that were originally outside the project's folder tree in suitably named subfolders. The stored PRJ file is modified accordingly, preventing the "blank page icon" problem that sometimes occurred after extraction. Bill Stone encouraged this improvement which simplifies transporting large projects to different computers.

Version 2, B7 Release, Build 2004-08-19
This is a maintenance release of Walls with miscellaneous improvements to the interface, help file, and error reporting. The search and replace functions were significantly upgraded. See Program Operation - Search Operations in the help file.

Version 2, B7 Release, Build 2004-05-20
SVG roundtripping now works with the latest Adobe Illustrator version (11 or CS), which has improved support for the SVG format. Also, with both AI10 and AI11 you can now decorate your maps with linked or embedded images, rotated or path-aligned text, and SVG filter effects. Such artwork will correctly conform to view or survey changes after processing by Walls. This processing has been revised so that symbols, text, and unnamed groups of objects can be placed in shp layers and their north-relative orientation will be preserved. (Unlike passage outlines, for example, they will be translated and scaled but not morphed.) As before, placing such objects in sym layers preserves their page-relative orientation. Numerous other improvements were made to SVG export/import operations. See SVG Layer Definitions in the help file and the updated sample in the Walls\Projects\Tutorial Project folder.

The shadowed box at left was created with an SVG filter, which is more flexible and efficient than an effect that has to be rasterized and embedded as an image. The large rocks are symbol instances placed in layer w2d Detail shp. Their positions might change with an adjustment, but their orientation with respect to the rotated grid is preserved. This is also true for the path-aligned text. The Color Gradient Dialog now has an "Apply to Map" button that updates (without closing the dialog) all open map frames with the color gradient you've temporarily defined. If you then cancel the dialog, the previously defined gradient is preserved while keeping any changes to the map displays. This feature (suggested by Jim Borden) makes it much easier to choose an effective color range. Also, an "Apply to Map" button replaces "Update" on the Segments page of the Review dialog. This refreshes all open map frames with the color settings on that page. Miscellaneous improvements: The options to view previously generated SVG and VRML files behave differently. If an SVG file is highlighted in the project tree, the operation will open that specific file. Otherwise, you'll pick from a date-sorted list of iles in the project folder.

Version 2, B7 Release, Build 2004-03-20
The most significant change with this build is that survey vectors and flagged stations are automatically highlighted as you move the mouse pointer over a displayed map. Upon selecting an object you can jump to either its definition in the raw data or to its position in the statistics tables. Another choice is to display all compiled information about the object. The information window is also available from the editor and Traverse page context menus and has buttons for copying coordinates directly to the geographical calculator. See topic Vector Properties Window in the help file. Vector highlighting is enabled when a screen pixel represents two meters or less. If an enclosing rectangle is present, right-clicking displays a menu like the one at left. If the pointer is not near an object when you click, a different menu appears -- one that supports zooming, layer toggling, and other operations. The help file topic Accessing Walls from Other Applications documents how an external program, such as Huw Millington's Windows Grep, can be tightly integrated with Walls to perform specialized searches (involving wildcards, etc.) across project data files. Numerous minor improvements. Examples: The display statuses of station notes and flags are preserved project settings. Color selection buttons show the current color or gradient type when the mouse pointer pauses over them. Rendering of gradient-colored LRUD passages was improved. The tutorial sample project was expanded.

Thanks for taking the time to look the program over.
Please contact me if you have suggestions or need additional information.

David Mckenzie