diff --git a/src/zipios++/collcoll.h b/src/zipios++/collcoll.h
index b1992137bd..d210ca02ea 100644
--- a/src/zipios++/collcoll.h
+++ b/src/zipios++/collcoll.h
@@ -45,7 +45,7 @@ public:
   /** \anchor collcoll_addcoll_anchor
       Adds a collection.
       @param collection The collection to add.
-      @return true if the collection was added succesfully and
+      @return true if the collection was added successfully and
       the added collection is valid.
    */
   bool addCollection( const FileCollection &collection ) ;
@@ -57,7 +57,7 @@ public:
       not added false is returned and the caller remains responsible for the
       collection pointed to by collection.
       @param collection A pointer to the collection to add.
-      @return true if the collection was added succesfully and
+      @return true if the collection was added successfully and
       the added collection is valid.
    */
   bool addCollection( FileCollection *collection ) ;
diff --git a/src/zipios++/fcoll.h b/src/zipios++/fcoll.h
index cd45d6d5ab..b97e239949 100644
--- a/src/zipios++/fcoll.h
+++ b/src/zipios++/fcoll.h
@@ -53,7 +53,7 @@ public:
       with the specified name. To ignore the path part of the filename in search of a
       match, specify FileCollection::IGNORE as the second argument.
       @param name A string containing the name of the entry to get.
-      @param matchpath Speficy MATCH, if the path should match as well, 
+      @param matchpath specify MATCH, if the path should match as well, 
       specify IGNORE, if the path should be ignored.
       @return A ConstEntryPointer to the found entry. The returned pointer
       equals zero if no entry is found.
@@ -76,7 +76,7 @@ public:
       with it. Returns 0, if there is no entry with the specified name in the
       FileCollection.
       @param entry_name
-      @param matchpath Speficy MATCH, if the path should match as well, 
+      @param matchpath specify MATCH, if the path should match as well, 
                        specify IGNORE, if the path should be ignored.
       @return an open istream for the specified entry. The istream is 
       allocated on heap and it is the users responsibility to delete it when
diff --git a/src/zipios++/fileentry.h b/src/zipios++/fileentry.h
index 08e3582dc3..7b0137c346 100644
--- a/src/zipios++/fileentry.h
+++ b/src/zipios++/fileentry.h
@@ -104,7 +104,7 @@ public:
   /** Any method or operator that initializes a FileEntry may set a
       flag, that specifies whether the read entry is valid or not. If
       it isn't this method returns false.  
-      @return true if the FileEntry has been parsed succesfully.
+      @return true if the FileEntry has been parsed successfully.
    */
   virtual bool isValid() const = 0 ;
   //     virtual int hashCode() const = 0 ;
diff --git a/src/zipios++/filepath.h b/src/zipios++/filepath.h
index cfaa339b46..7528368747 100644
--- a/src/zipios++/filepath.h
+++ b/src/zipios++/filepath.h
@@ -20,7 +20,7 @@ public:
   /** Constructor.
       @param path A string representation of the path.
       @param check_exists If true is specified the constructor will
-      check the existence and type of the path immidiately, instead of
+      check the existence and type of the path immediately, instead of
       deferring that task until it is needed. */
   FilePath( const string &path = "", bool check_exists = false ) ;
 
diff --git a/src/zipios++/simplesmartptr.h b/src/zipios++/simplesmartptr.h
index 2cf8311636..d34c08aaa9 100644
--- a/src/zipios++/simplesmartptr.h
+++ b/src/zipios++/simplesmartptr.h
@@ -118,10 +118,10 @@ class ReferenceCount {
   friend class Bogus ;
   
 public:
-  /** Constructor intializes count to zero. */
+  /** Constructor initializes count to zero. */
   ReferenceCount() : _ref_count( 0 ) {}
 
-  /** Copy-constructor intializes count to zero. It doesn't copy it
+  /** Copy-constructor initializes count to zero. It doesn't copy it
       from src. */
   ReferenceCount( const ReferenceCount & /*src*/ ) : _ref_count( 0 ) {}