--- a/colophon.roff	Fri Jul 13 01:12:07 2012 +0200
+++ b/colophon.roff	Fri Jul 13 18:35:36 2012 +0200
@@ -18,14 +18,14 @@
 portable as I accessed Heirloom troff extensions and ms internals,
 occasionally.
 .P
-My troff setup was inspired and guided by
+My document preparation setup was inspired and guided by
 Dougherty and O'Reilly's
 .I "UNIX Text Processing
 and by chapter seven of Bourne's
 .I "The UNIX System" .
 The
 .I "Nroff/Troff User's Manual
-added definitive answers.
+helped with definitive answers.
 .P
 The typesetting command line read something like:
 .VS
@@ -39,12 +39,14 @@
 Dimitar Zhekov's \fITerminus\fP font.
 Both are free typefaces.
 .P
-The page layout of the document was greatly inspired by the German book
-\fIEinf\[udieresis]hrung in die Automatentheorie,
+The layout of the inner pages of this document were modelled after
+the German book \fIEinf\[udieresis]hrung in die Automatentheorie,
 Formale Sprache und Komplexit\[adieresis]tstheorie\fP
 by Hopcroft and Ullman, Addison-Wesley, 1990.
+The title page was inspired by books of the 19th century,
+mainly by the ones of Charles Darwin.
 .P
-For programming and to write this document, I used the
+For programming and for writing this document, I used the
 .Pn ex-vi
 editor because
 .Pn ed
@@ -60,7 +62,7 @@
 Apart from that, follow the scientific custom:
 Quote and acknowledge the reference.
 
-.sp 3c
+.sp 2.5c
 .LP
 Dijkstra's words on page
 .Cf dijkstra.page