diff --git a/Cantera/clib/src/ct.cpp b/Cantera/clib/src/ct.cpp
index e3919abaa..28e66243e 100755
--- a/Cantera/clib/src/ct.cpp
+++ b/Cantera/clib/src/ct.cpp
@@ -88,6 +88,7 @@ static double pfprop(int n, int i, double v=0.0, double x=0.0) {
 }
 #endif
 
+
 inline int nThermo() {
     return Storage::storage()->nThermo();
 }
@@ -101,6 +102,11 @@ namespace Cantera {
  */
 extern "C" {
 
+    int DLL_EXPORT ct_appdelete() {
+        appdelete();
+        return 0;
+    }
+
     //--------------- Phase ---------------------//
 
     int DLL_EXPORT phase_nElements(int n) {
diff --git a/Cantera/clib/src/ct.h b/Cantera/clib/src/ct.h
index b23723ed9..a4f1aa34f 100755
--- a/Cantera/clib/src/ct.h
+++ b/Cantera/clib/src/ct.h
@@ -5,6 +5,7 @@
 #include "cantera/config.h"
 
 extern "C" {
+    int DLL_IMPORT ct_appdelete();
 
     int DLL_IMPORT phase_nElements(int n);
     int DLL_IMPORT phase_nSpecies(int n);
diff --git a/Cantera/python/Cantera/__init__.py b/Cantera/python/Cantera/__init__.py
index 244386d3e..055b03a3e 100755
--- a/Cantera/python/Cantera/__init__.py
+++ b/Cantera/python/Cantera/__init__.py
@@ -51,6 +51,12 @@ def addDirectory(dir):
 def writeLogFile(file):
     return _cantera.ct_writelogfile(file)
 
+
+def reset():
+    """Release all cached Cantera data. Equivalent to
+    starting a fresh session."""
+    _cantera.ct_appdelete()
+    
 # workaround for case problems in CVS repository file Mixture.py. On some
 # systems it appears as mixture.py, and on others as Mixture.py
 try:
diff --git a/Cantera/python/src/methods.h b/Cantera/python/src/methods.h
index 084232126..f52b8ce23 100644
--- a/Cantera/python/src/methods.h
+++ b/Cantera/python/src/methods.h
@@ -294,6 +294,8 @@ static PyMethodDef ct_methods[] = {
     {"mix_equilibrate", py_mix_equilibrate, METH_VARARGS},
     {"mix_getChemPotentials", py_mix_getChemPotentials, METH_VARARGS},
 
+    {"ct_appdelete", pyct_appdelete, METH_VARARGS},
+
 #ifdef INCL_USER_PYTHON
 #include "usermethods.h"
 #endif
diff --git a/Cantera/python/src/pycantera.cpp b/Cantera/python/src/pycantera.cpp
index d7ee7dcc3..d8c7baea5 100644
--- a/Cantera/python/src/pycantera.cpp
+++ b/Cantera/python/src/pycantera.cpp
@@ -63,6 +63,10 @@ static PyObject *ErrorObject;
 #include "ctuser_methods.cpp"
 #endif
 
+static PyObject*
+pyct_appdelete(PyObject *self, PyObject *args) {
+    return Py_BuildValue("i",ct_appdelete());        
+}
 
 #include "methods.h"
 #include "pylogger.h"
diff --git a/Cantera/src/base/ctml.cpp b/Cantera/src/base/ctml.cpp
index 728d4ff50..cdfa11661 100755
--- a/Cantera/src/base/ctml.cpp
+++ b/Cantera/src/base/ctml.cpp
@@ -451,6 +451,7 @@ namespace ctml {
             }
             key.push_back(v[i].substr(0,icolon));
             val.push_back(v[i].substr(icolon+1, v[i].size()));
+            //cout << "getPairs: " << key.back() << " " << val.back() << endl;
         }
     }
 
diff --git a/Cantera/src/base/units.h b/Cantera/src/base/units.h
index 02a609d99..be4952303 100644
--- a/Cantera/src/base/units.h
+++ b/Cantera/src/base/units.h
@@ -195,7 +195,7 @@ namespace Cantera {
       m_u["kJ"]       = 1.0e3;
       m_u["cal"]      = 4.184;
       m_u["kcal"]     = 4184.0;
-      m_u["eV"]       = 1.60217733e-19;
+      m_u["eV"]       = Faraday; //1.60217733e-19;
 
       // quantity
       m_u["mol"]      = 1.0e-3;
@@ -223,7 +223,7 @@ namespace Cantera {
       m_u["hr"]       = 3600.0;
       m_u["ms"]       = 0.001;
 
-      m_act_u["eV"] = m_u["eV"]/m_u["molec"];
+      m_act_u["eV"] = m_u["eV"]; // /m_u["molec"];
       m_act_u["K"] =  GasConstant;
       m_act_u["Kelvin"] =  GasConstant;
       m_act_u["Dimensionless"] =  (GasConstant * 273.15);