--- a/src/help.cc
+++ b/src/help.cc
@@ -245,7 +245,7 @@
       ptr++;
     }
 
-  name_list[count] = (char *) NULL;
+  name_list[i] = (char *) NULL;
   return name_list;
 }
 

--- a/src/input.cc
+++ b/src/input.cc
@@ -303,7 +303,12 @@
       len = strlen (text);
 
       if (name_list != (char **) NULL)
-	delete [] name_list;
+	{
+	  char **ptr = name_list;
+	  while (ptr && *ptr)
+	    delete [] *ptr++;
+	  delete [] name_list;
+	}
 
       name_list = make_name_list ();
     }
@@ -313,7 +318,11 @@
     {
       list_index++;
       if (strncmp (name, text, len) == 0)
-	return name;
+	{
+	  char *buf = xmalloc (1 + strlen (name));
+	  strcpy (buf, name);
+	  return buf;
+	}
     }
 
   return (char *) NULL;

--- a/src/symtab.cc
+++ b/src/symtab.cc
@@ -980,8 +980,7 @@
 	{
 	  if (save (os, *ptr, mark_as_global))
 	    status++;
-
-	  ptr++;
+	  delete [] *ptr++;
 	}
       delete [] names;
     }

--- a/src/utils.cc
+++ b/src/utils.cc
@@ -362,17 +362,11 @@
 	    }
 	}
 
-// Why do I have to do this?
-
       char **foo = path;
       while (foo && *foo)
-	{
-	  delete [] *foo;
-	  *foo = (char *) NULL;
-	  foo++;
-	}
-      
+	delete [] *foo++;
       delete [] path;
+
       path = new char * [nelem+1];
       path[nelem] = (char *) NULL;
 
@@ -1313,11 +1307,17 @@
 
 	      if (i == num_max - 1)
 		{
+// Reallocate the array.  Only copy pointers, not the strings they
+// point to, then only delete the original array of pointers, and not
+// the strings they point to.
+
 		  num_max += 256;
 		  char **tmp = new char * [num_max];
 		  for (int j = 0; j < i; j++)
 		    tmp[j] = retval[j];
 
+		  delete [] retval;
+
 		  retval = tmp;
 		}
 	    }
@@ -1350,11 +1350,17 @@
 
 	  if (i + tmp_num >= num_max - 1)
 	    {
+// Reallocate the array.  Only copy pointers, not the strings they
+// point to, then only delete the original array of pointers, and not
+// the strings they point to.
+
 	      num_max += 1024;
 	      char **tmp = new char * [num_max];
 	      for (int j = 0; j < i; j++)
 		tmp[j] = retval[j];
 
+	      delete [] retval;
+
 	      retval = tmp;
 	    }
 

--- a/src/variables.cc
+++ b/src/variables.cc
@@ -694,6 +694,9 @@
   char **lcl = (char **) NULL;
   char **mfl = (char **) NULL;
 
+// Each of these functions returns a new vector of pointers to new
+// strings.
+
   key = names (keyword_help (), key_len);
   glb = global_sym_tab->list (glb_len);
   top = top_level_sym_tab->list (top_len);
@@ -705,22 +708,26 @@
 
   char **list = new char * [total_len+1];
   
+// Put all the symbols in one big list.  Only copy pointers, not the
+// strings they point to, then only delete the original array of
+// pointers, and not the strings they point to.
+
   int j = 0;
   int i = 0;
   for (i = 0; i < key_len; i++)
-    list[j++] = strsave (key[i]);
+    list[j++] = key[i];
 
   for (i = 0; i < glb_len; i++)
-    list[j++] = strsave (glb[i]);
+    list[j++] = glb[i];
 
   for (i = 0; i < top_len; i++)
-    list[j++] = strsave (top[i]);
+    list[j++] = top[i];
 
   for (i = 0; i < lcl_len; i++)
-    list[j++] = strsave (lcl[i]);
+    list[j++] = lcl[i];
 
   for (i = 0; i < mfl_len; i++)
-    list[j++] = strsave (mfl[i]);
+    list[j++] = mfl[i];
 
   list[j] = (char *) NULL;