diff --git a/include/chaiscript/dispatchkit/bootstrap_stl.hpp b/include/chaiscript/dispatchkit/bootstrap_stl.hpp
index a1f9cbf..d910c26 100644
--- a/include/chaiscript/dispatchkit/bootstrap_stl.hpp
+++ b/include/chaiscript/dispatchkit/bootstrap_stl.hpp
@@ -36,16 +36,6 @@ namespace chaiscript
       {
       }
 
-      Bidir_Range(typename Container::iterator itr)
-        : m_begin(itr), m_end(itr)
-      {
-      }
-
-      Bidir_Range(const std::pair<typename Container::iterator, typename Container::iterator> &t_p)
-        : m_begin(t_p.first), m_end(t_p.second)
-      {
-      }
-
       bool empty() const
       {
         return m_begin == m_end;
@@ -118,20 +108,10 @@ namespace chaiscript
     ModulePtr input_range_type(const std::string &type, ModulePtr m = ModulePtr(new Module()))
     {
       m->add(user_type<Bidir_Range<ContainerType> >(), type + "_Range");
-      m->add(user_type<Retro<Bidir_Range<ContainerType> > >(), type + "_Retro_Range");
-      m->add(user_type<typename ContainerType::iterator>(), type+"_Iterator");
 
       copy_constructor<Bidir_Range<ContainerType> >(type + "_Range", m);
-      copy_constructor<Retro<Bidir_Range<ContainerType> > >(type + "_Retro_Range", m);
 
       m->add(constructor<Bidir_Range<ContainerType> (ContainerType &)>(), "range");
-      m->add(constructor<Bidir_Range<ContainerType> (typename ContainerType::iterator)>(), "range");
-
-      typedef std::pair<typename ContainerType::iterator, typename ContainerType::iterator> ItrPair;
-
-      m->add(constructor<Bidir_Range<ContainerType> (const ItrPair &)>(), "range");
-
-      m->add(user_type<ItrPair>(), type+"_Iterator_Pair");
 
       m->add(fun(&Bidir_Range<ContainerType>::empty), "empty");
       m->add(fun(&Bidir_Range<ContainerType>::pop_front), "pop_front");
@@ -139,16 +119,6 @@ namespace chaiscript
       m->add(fun(&Bidir_Range<ContainerType>::pop_back), "pop_back");
       m->add(fun(&Bidir_Range<ContainerType>::back), "back");
 
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::empty), "empty");
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::pop_front), "pop_front");
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::front), "front");
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::pop_back), "pop_back");
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::back), "back");
-
-      m->add(constructor<Retro<Bidir_Range<ContainerType> > (const Bidir_Range<ContainerType> &)>(), "retro");
-
-
-
       return m;
     } 
 
@@ -176,8 +146,6 @@ namespace chaiscript
       //to throw an exception in an out of bounds condition.
       m->add(
         fun(boost::function<typename ContainerType::reference (ContainerType *, int)>(static_cast<indexoper>(&ContainerType::at))), "[]");
-      m->add(
-        fun(boost::function<typename ContainerType::reference (ContainerType *, int)>(static_cast<indexoper>(&ContainerType::operator[]))), "at");
 
       return m;
     }
@@ -204,7 +172,6 @@ namespace chaiscript
       assignable_type<ContainerType>(type, m);
 
       m->add(fun<size_t (ContainerType::*)() const>(&ContainerType::size), "size");
-      m->add(fun<size_t (ContainerType::*)() const>(&ContainerType::max_size), "max_size");
       m->add(fun<bool (ContainerType::*)() const>(&ContainerType::empty), "empty");
       m->add(fun<void (ContainerType::*)()>(&ContainerType::clear), "clear");
 
@@ -443,7 +410,6 @@ namespace chaiscript
 
       reversible_container_type<ContainerType>(type, m);
       associative_container_type<ContainerType>(type, m);
-      m->add(fun(static_cast<eq_range>(&ContainerType::equal_range)), "equal_range");
 
       return m;
     }
diff --git a/include/chaiscript/language/chaiscript_prelude.hpp b/include/chaiscript/language/chaiscript_prelude.hpp
index 092e106..8b6514b 100644
--- a/include/chaiscript/language/chaiscript_prelude.hpp
+++ b/include/chaiscript/language/chaiscript_prelude.hpp
@@ -9,7 +9,7 @@
 
 //Note, the expression "[x,y]" in "collate" is parsed as two separate expressions
 //by C++, so CODE_STRING, takes two expressions and adds in the missing comma
-#define CODE_STRING(x, y) #x ", " #y
+#define CODE_STRING(x, y, z) #x ", " #y ", " #z
 
 #define chaiscript_prelude CODE_STRING(\
 def new(x) { eval(type_name(x))(); } \
@@ -52,13 +52,27 @@ def insert_at(container, pos, x) { container.insert_ref_at(pos, clone(x)); } \n\
 # Returns the reverse of the given container\n\
 def reverse(container) {\
   var retval = new(container); \
-  var r = retro(range(container)); \
+  var r = range(container); \
   while (!r.empty()) { \
-    retval.push_back(r.front()); \
-    r.pop_front(); \
+    retval.push_back(r.back()); \
+    r.pop_back(); \
   } \
   retval; \
 } \
+# Returns true if the object is a retro object\n\
+def is_retro(r) { call_exists(count, r, "data_type") && r.count("data_type") == 1 && r["data_type"] == "retro" }\n\
+# Creates a retro from a retro by returning the original range\n\
+def retro(r) : is_retro(r) { clone(r["data"]) }\n\
+# Creates a retro range from a range\n\
+def retro(r) : call_exists(empty, r) && call_exists(pop_front, r) && call_exists(pop_back, r) && call_exists(back, r) && call_exists(front, r) { var m = ["data_type":"retro", "data":r]; }\n\
+# Returns the first value of a retro\n\
+def front(r) : is_retro(r) { back(r["data"]) }\n\
+# Returns the last value of a retro\n\
+def back(r) : is_retro(r) { front(r["data"]) }\n\
+# Moves the back iterator of a retro towards the front by one \n\
+def pop_back(r) : is_retro(r) { pop_front(r["data"]) }\n\
+# Moves the front iterator of a retro towards the back by one \n\
+def pop_front(r) : is_retro(r) { pop_back(r["data"]) } \n\
 # Performs the second value function over the container first value\n\
 def for_each(container, func) : call_exists(range, container) { \
   var range = range(container); \