diff -Ewbur brlcad-code/doc/docbook/articles/en/about.xml brlcad-code-old/doc/docbook/articles/en/about.xml
--- brlcad-code/doc/docbook/articles/en/about.xml	2013-11-22 16:27:10.248530826 -0800
+++ brlcad-code-old/doc/docbook/articles/en/about.xml	2013-11-22 16:18:33.177473243 -0800
@@ -78,7 +78,7 @@
       applications comprising more than a million lines of source
       code.  The package is intentionally designed to be extensively
       cross-platform and is actively developed on and maintained for
-      many common operating system environments including BSD,
+      many common operating system environments including for BSD,
       Linux, Solaris, Mac OS X, and Windows among others.  BRL-CAD is
       distributed in binary and source code form as free open source
       software (FOSS), provided under Open Source Initiative (OSI)
Only in brlcad-code/doc/docbook/articles/en: about.xml~
diff -Ewbur brlcad-code/doc/docbook/articles/en/build_pattern.xml brlcad-code-old/doc/docbook/articles/en/build_pattern.xml
--- brlcad-code/doc/docbook/articles/en/build_pattern.xml	2013-11-22 16:30:04.344556356 -0800
+++ brlcad-code-old/doc/docbook/articles/en/build_pattern.xml	2013-11-22 16:18:33.164473317 -0800
@@ -31,7 +31,7 @@
     <para>
       There are many input fields. Some stand alone, and others belong to series
       that work together to provide the needed information for a specific
-      option. Each series is denoted by a diamond-shaped check box. If the
+      option. Each series is demarked by a diamond-shaped check box. If the
       diamond is highlighted red, then all fields in that series are required.
       All required fields must be filled in for the pattern tool to work
       properly. It is also important to note that all dimensions must be in
@@ -92,7 +92,7 @@
       increment, examine the primitives of the object(s) you wish to pattern and find
       the largest span. For example, to create a pattern to the primitive level with
       the following primitives (which may or may not be in regions or
-      assemblies):
+      assemblies),
 
       <literallayout class="normal">
 part.s22 part.s22-1 part.s23 part.s24 part.s24+1 part.s24-1 part.s25,
Only in brlcad-code/doc/docbook/articles/en: build_pattern.xml~
diff -Ewbur brlcad-code/doc/docbook/articles/en/build_region.xml brlcad-code-old/doc/docbook/articles/en/build_region.xml
--- brlcad-code/doc/docbook/articles/en/build_region.xml	2013-11-22 16:30:54.042277726 -0800
+++ brlcad-code-old/doc/docbook/articles/en/build_region.xml	2013-11-22 16:18:33.164473317 -0800
@@ -127,7 +127,7 @@
 
   <para xml:id="build_region12">
     Obviously, the overall success or failure of the build_region command
-    depends on primitives being named properly. But, if they aren't, the command
+    depends on primitives being named properly. But if they are, the command
     can organize them in one automated step, creating complex regions in just
     a few keystrokes.
   </para>
Only in brlcad-code/doc/docbook/articles/en: build_region.xml~
diff -Ewbur brlcad-code/doc/docbook/articles/en/ebm_primitive.xml brlcad-code-old/doc/docbook/articles/en/ebm_primitive.xml
--- brlcad-code/doc/docbook/articles/en/ebm_primitive.xml	2013-11-22 16:31:18.315141570 -0800
+++ brlcad-code-old/doc/docbook/articles/en/ebm_primitive.xml	2013-11-22 16:18:33.164473317 -0800
@@ -13,7 +13,7 @@
 
   <para xml:id="ebm1">
     The extruded bitmap (ebm) primitive allows the user to make a
-    three-dimensional (3-D) shape from a two-dimensional, black-and-white
+    three-dimensional (3-D) shape from a two-dimensional black-and-white
     image. This feature can be helpful when dealing with complex outlines,
     text, or other complicated shapes captured as images.
   </para>
@@ -95,7 +95,7 @@
       </listitem>
       <listitem>
 	<para>
-	  The desired width and height of the ebm are inputted as pixel
+	  The desired width and height of the ebm are input as pixel
 	  values, but the extrusion distance can be expressed in any
 	  working units.
 	</para>
Only in brlcad-code/doc/docbook/articles/en: ebm_primitive.xml~
diff -Ewbur brlcad-code/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeIII.xml brlcad-code-old/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeIII.xml
--- brlcad-code/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeIII.xml	2013-11-22 16:27:03.400569103 -0800
+++ brlcad-code-old/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeIII.xml	2013-11-22 16:18:33.083473781 -0800
@@ -31,7 +31,7 @@
 
   </info>
 
-  <preface><info><title>Acknowledgments</title></info>
+  <preface><info><title>Acknowledgements</title></info>
 
 
     <para>
@@ -523,7 +523,7 @@
        smaller, more manageable pieces. Also, this step can often reveal a
        logical building order (e.g., the drywall does not get installed until the
        wiring inside the walls has been run) as well as identify important
-       interconnections among parts.
+       interconnectivities among parts.
      </para>
      <para>
        The following list provides some tips to achieve good model structuring:
@@ -1583,7 +1583,7 @@
 	    model.
 	  </para>
 	  <para>
-	    As shown in Table 7, there are trade-offs to be considered when using each
+	    As shown in Table 7, there are tradeoffs to be considered when using each
 	    of these approaches. Construction effort is one of them. If the prototype
 	    consists of many objects or layers of structure, replication could be a
 	    tedious task. In the box of pencils, for example, all of the structure of
Only in brlcad-code/doc/docbook/books/en: BRL-CAD_Tutorial_Series-VolumeIII.xml~
diff -Ewbur brlcad-code/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeII.xml brlcad-code-old/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeII.xml
--- brlcad-code/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeII.xml	2013-11-22 16:27:05.290558540 -0800
+++ brlcad-code-old/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeII.xml	2013-11-22 16:18:33.083473781 -0800
@@ -68,7 +68,7 @@
     </para>
   </preface>
 
-  <preface><info><title>Acknowledgments</title></info>
+  <preface><info><title>Acknowledgements</title></info>
 
     <para>
       The authors would like to thank Paul Tanenbaum, TraNese Christy, Sean
Only in brlcad-code/doc/docbook/books/en: BRL-CAD_Tutorial_Series-VolumeII.xml~
diff -Ewbur brlcad-code/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeIV.xml brlcad-code-old/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeIV.xml
--- brlcad-code/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeIV.xml	2013-11-22 16:27:00.923582948 -0800
+++ brlcad-code-old/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeIV.xml	2013-11-22 16:18:33.083473781 -0800
@@ -41,7 +41,7 @@
     </formalpara>
   </dedication>
   <!--  <preface>
-  <title>Acknowledgments</title>
+  <title>Acknowledgements</title>
   <para>The authors would like to thank Messrs. Lee Butler, Edwin Davisson, William
   Landis, and David Davis for technically reviewing this document in a timely
   manner and for making numerous suggestions to improve its content and
@@ -763,7 +763,7 @@
       <para>Accordingly, in order to use the converter, the user must have a seat of Pro/E as well as the BRL-CAD distribution. Currently, the converter is only supported on <orgname>Silicon Graphics (SGI)</orgname> machines with MIPS processors running the Irix operating system. The source code for this converter is included in the binary distribution, so users can compile it for different platforms if they have the Pro/Toolkit module for that platform.</para>
       <para>Pro/E models are made up of two elements: parts and assemblies. Part files (which are designated by a <filename>.prt</filename> extension) are the basic building blocks of Pro/E geometry. Assembly files (which are designated by a <filename>.asm</filename> extension) are composed of parts and/or other assemblies. The converter produces a BRL-CAD region for each Pro/E part that is converted and a BRL- CAD combination for each Pro/E assembly that is converted. Each of these regions will consist of a single BOT primitive.</para>
       <para>The conversion of geometry from Pro/E to BRL-CAD is a two-stage process. This converter first produces the ASCII form of BRL-CAD databases. The user then converts these databases to binary form using the <command>asc2g</command> utility.</para>
-      <para>In addition, because Pro/E files for most combat vehicles are so large (often requiring a stack of CD's to store them), entire geometries typically cannot be loaded all at once. Thus, the BRL-CAD user often has to convert geometry system by system (e.g., engine, transmission, and suspension) and then concatenate (i.e., join) them together in a single BRL-CAD geometry file. For more detailed information about this process, see the discussion on dbconcat in Volume III of this tutorial series.</para>
+      <para>In addition, because Pro/E files for most combat vehicles are so large (often requiring a stack of CDs to store them), entire geometries typically cannot be loaded all at once. Thus, the BRL-CAD user often has to convert geometry system by system (e.g., engine, transmission, and suspension) and then concatenate (i.e., join) them together in a single BRL-CAD geometry file. For more detailed information about this process, see the discussion on dbconcat in Volume III of this tutorial series.</para>
       <para>Pro/E makes extensive use of referenced geometry. As discussed in the previous volume of this tutorial series (see section 5 of Butler et al. [2003]), referencing is the method by which multiple occurrences of objects are created by referring to a single object numerous times with different orientations and locations for each reference. These references are duplicated in BRL-CAD using combinations and transformation matrices. In some cases-such as when geometry is used with vulnerability codes that require each region to have a unique ident number-users may need to use the <command>xpush</command> command in MGED after the conversion is complete to replace the references with real geometry. For more information about this procedure, users should consult MGED's on-line help or the <command>xpush</command> entry in volume II of this tutorial series (see appendix A of Butler et al. [2001]).</para>
       <table><title>Keys to Converting Pro/E Geometry</title>
 
Only in brlcad-code/doc/docbook/books/en: BRL-CAD_Tutorial_Series-VolumeIV.xml~
diff -Ewbur brlcad-code/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeI.xml brlcad-code-old/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeI.xml
--- brlcad-code/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeI.xml	2013-11-22 16:27:07.817544415 -0800
+++ brlcad-code-old/doc/docbook/books/en/BRL-CAD_Tutorial_Series-VolumeI.xml	2013-11-22 16:18:33.118473581 -0800
@@ -235,7 +235,7 @@
 	</listitem>
 	<listitem>
 	  <para>
-		Programs for manipulating images and converting between different image file types. The two primary BRL-CAD types are pix (24-bit red, green, and blue [RGB] color images) and bw (8-bit grayscale images). Converters exist for various image formats including alias, png, ppm, etc.
+		Programs for manipulating images and converting between different image file types. The two primary BRL-CAD types are pix (24-bit red, green, and blue [RGB] color images) and bw (8-bit greyscale images). Converters exist for various image formats including alias, png, ppm, etc.
 	  </para>
 	</listitem>
 	<listitem>
@@ -378,7 +378,7 @@
 
   </chapter>
 
-  <chapter xml:id="acknowledgements"><info><title>Acknowledgments</title></info>
+  <chapter xml:id="acknowledgements"><info><title>Acknowledgements</title></info>
 
 	<para>
 	The authors would like to thank the members of the Advanced Computer Systems Team, who reviewed this document in a timely manner and made many helpful suggestions to improve its accuracy and presentation. At the time this document was prepared team members included John Anderson, TraNese Christy, Bob Parker, Ron Bowers, and Sean Morrison.
Only in brlcad-code/doc/docbook/books/en: BRL-CAD_Tutorial_Series-VolumeI.xml~
