diff --git a/Doc/ref/ref1.tex b/Doc/ref/ref1.tex
index b611d9c..e821eea 100644
--- a/Doc/ref/ref1.tex
+++ b/Doc/ref/ref1.tex
@@ -71,7 +71,7 @@
 are used: Two literal characters separated by three dots mean a choice
 of any single character in the given (inclusive) range of \ASCII{}
 characters.  A phrase between angular brackets (\code{<...>}) gives an
-informal description of the symbol defined; e.g. this could be used
+informal description of the symbol defined; e.g., this could be used
 to describe the notion of `control character' if needed.
 \index{lexical definitions}
 \index{ASCII@\ASCII{}}
diff --git a/Doc/ref/ref2.tex b/Doc/ref/ref2.tex
index 2eef6ee..3b6adc8 100644
--- a/Doc/ref/ref2.tex
+++ b/Doc/ref/ref2.tex
@@ -38,7 +38,7 @@
 The end of
 a logical line is represented by the token NEWLINE.  Statements cannot
 cross logical line boundaries except where NEWLINE is allowed by the
-syntax (e.g. between statements in compound statements).
+syntax (e.g., between statements in compound statements).
 A logical line is constructed from one or more \emph{physical lines}
 by following the explicit or implicit \emph{line joining} rules.
 \index{logical line}
@@ -455,7 +455,7 @@
 \begin{verbatim}
 floatnumber:    pointfloat | exponentfloat
 pointfloat:     [intpart] fraction | intpart "."
-exponentfloat:  (intpart | pointfloat) exponent
+exponentfloat:  (nonzerodigit digit* | pointfloat) exponent
 intpart:        nonzerodigit digit* | "0"
 fraction:       "." digit+
 exponent:       ("e"|"E") ["+"|"-"] digit+
@@ -487,10 +487,10 @@
 0.0.  Complex numbers are represented as a pair of floating point
 numbers and have the same restrictions on their range.  To create a
 complex number with a nonzero real part, add a floating point number
-to it, e.g. \code{(3+4j)}.  Some examples of imaginary literals:
+to it, e.g., \code{(3+4j)}.  Some examples of imaginary literals:
 
 \begin{verbatim}
-3.14j   10.j    10 j    .001j   1e100j  3.14e-10j 
+3.14j   10.j    10j     .001j   1e100j  3.14e-10j 
 \end{verbatim}
 
 
diff --git a/Doc/ref/ref3.tex b/Doc/ref/ref3.tex
index 4b64e8e..037191e 100644
--- a/Doc/ref/ref3.tex
+++ b/Doc/ref/ref3.tex
@@ -810,7 +810,8 @@
 
 
 \item[{\tt __del__(self)}]
-Called when the instance is about to be destroyed.  If a base class
+Called when the instance is about to be destroyed.  This is also
+called a destructor\index{destructor}.  If a base class
 has a \method{__del__()} method, the derived class's \method{__del__()} method
 must explicitly call it to ensure proper deletion of the base class
 part of the instance.  Note that it is possible (though not recommended!)
@@ -1215,7 +1216,7 @@
 \strong{Coercion rules}: to evaluate \var{x} \var{op} \var{y}, the
 following steps are taken (where \method{__op__()} and
 \method{__rop__()} are the method names corresponding to \var{op},
-e.g. if var{op} is `\code{+}', \method{__add__()} and
+e.g., if var{op} is `\code{+}', \method{__add__()} and
 \method{__radd__()} are used).  If an exception occurs at any point,
 the evaluation is abandoned and exception handling takes over.
 
diff --git a/Doc/ref/ref4.tex b/Doc/ref/ref4.tex
index 4873804..4d5f8d0 100644
--- a/Doc/ref/ref4.tex
+++ b/Doc/ref/ref4.tex
@@ -12,7 +12,7 @@
 (like function bodies) may be executed many times.  Code blocks may
 textually contain other code blocks.  Code blocks may invoke other
 code blocks (that may or may not be textually contained in them) as
-part of their execution, e.g. by invoking (calling) a function.
+part of their execution, e.g., by invoking (calling) a function.
 \index{code block}
 \indexii{code}{block}
 
diff --git a/Doc/ref/ref5.tex b/Doc/ref/ref5.tex
index d0d57ec..8624bc6 100644
--- a/Doc/ref/ref5.tex
+++ b/Doc/ref/ref5.tex
@@ -36,7 +36,7 @@
 	is necessary.
 \end{itemize}
 
-Some additional rules apply for certain operators (e.g. a string left
+Some additional rules apply for certain operators (e.g., a string left
 argument to the `\%' operator). Extensions can define their own
 coercions.
 \section{Atoms}
@@ -216,7 +216,7 @@
 (In particular, converting a string adds quotes around it and converts
 ``funny'' characters to escape sequences that are safe to print.)
 
-It is illegal to attempt to convert recursive objects (e.g. lists or
+It is illegal to attempt to convert recursive objects (e.g., lists or
 dictionaries that contain a reference to themselves, directly or
 indirectly.)
 \obindex{recursive}
@@ -248,7 +248,7 @@
 \end{verbatim}
 
 The primary must evaluate to an object of a type that supports
-attribute references, e.g. a module or a list.  This object is then
+attribute references, e.g., a module or a list.  This object is then
 asked to produce the attribute whose name is the identifier.  If this
 attribute is not available, the exception
 \exception{AttributeError}\exindex{AttributeError} is raised.
@@ -361,7 +361,7 @@
 \subsection{Calls} \label{calls}
 \index{call}
 
-A call calls a callable object (e.g. a function) with a possibly empty
+A call calls a callable object (e.g., a function) with a possibly empty
 series of arguments:
 \obindex{callable}
 
@@ -567,7 +567,7 @@
 division of the first argument by the second.  The numeric arguments
 are first converted to a common type.  A zero right argument raises
 the \exception{ZeroDivisionError} exception.  The arguments may be floating
-point numbers, e.g. \code{3.14\%0.7} equals \code{0.34} (since
+point numbers, e.g., \code{3.14\%0.7} equals \code{0.34} (since
 \code{3.14} equals \code{4*0.7 + 0.34}.)  The modulo operator always
 yields a result with the same sign as its second operand (or zero);
 the absolute value of the result is strictly smaller than the second
@@ -663,7 +663,7 @@
 
 Comparisons yield integer values: \code{1} for true, \code{0} for false.
 
-Comparisons can be chained arbitrarily, e.g. \code{x < y <= z} is
+Comparisons can be chained arbitrarily, e.g., \code{x < y <= z} is
 equivalent to \code{x < y and y <= z}, except that \code{y} is
 evaluated only once (but in both cases \code{z} is not evaluated at all
 when \code{x < y} is found to be false).
@@ -789,7 +789,7 @@
 replaced by a default value if it is empty, the expression
 \code{s or 'foo'} yields the desired value.  Because \keyword{not} has to
 invent a value anyway, it does not bother to return a value of the
-same type as its argument, so e.g. \code{not 'foo'} yields \code{0},
+same type as its argument, so e.g., \code{not 'foo'} yields \code{0},
 not \code{''}.)
 
 Lambda forms (lambda expressions) have the same syntactic position as