diff --git a/apps/MixMaster/DataFrame.py b/apps/MixMaster/DataFrame.py
index 9a3254ad6..61e73e793 100644
--- a/apps/MixMaster/DataFrame.py
+++ b/apps/MixMaster/DataFrame.py
@@ -1,8 +1,8 @@
 import os, math, string
 from Tkinter import *
 from Cantera import *
-from Numeric import *
-import Numeric
+from Cantera.num import *
+from Cantera import num
 from tkFileDialog import askopenfilename
 from GraphFrame import Graph
 from DataGraph import DataGraph, plotLimits
@@ -295,7 +295,7 @@ class DataFrame(Frame):
                 if self.ydata[n] <= 0.0:
                     #print n, self.ydata[n]
                     self.ydata[n] = 1.0e-20
-            self.ydata = Numeric.log10(self.ydata)
+            self.ydata = num.log10(self.ydata)
             ylog = 1
 
         self.gdata = []
diff --git a/apps/MixMaster/DataGraph.py b/apps/MixMaster/DataGraph.py
index 37223263d..9293a141c 100644
--- a/apps/MixMaster/DataGraph.py
+++ b/apps/MixMaster/DataGraph.py
@@ -1,7 +1,7 @@
 
 from Tkinter import *
 import math
-from Numeric import *
+from Cantera.num import *
 
 def plotLimits(ypts, f=0.0, ndiv=5, logscale=0):
 	"""Return plot limits that"""
diff --git a/apps/MixMaster/Mix.py b/apps/MixMaster/Mix.py
index ccaa5d8e1..ac502f22c 100644
--- a/apps/MixMaster/Mix.py
+++ b/apps/MixMaster/Mix.py
@@ -1,5 +1,5 @@
 from Cantera import GasConstant, OneAtm
-from Numeric import zeros
+from Cantera.num import zeros
 
 def spdict(phase, x):
 	nm = phase.speciesNames()
diff --git a/apps/MixMaster/main.py b/apps/MixMaster/main.py
index 50b714c9d..9cd99d413 100644
--- a/apps/MixMaster/main.py
+++ b/apps/MixMaster/main.py
@@ -13,10 +13,10 @@ _app_version = '1.0'
 from Tkinter import *
 import tkMessageBox
 import sys, os, string
-from Numeric import zeros
 
 # Cantera imports
 from Cantera import *
+from Cantera.num import zeros
 import utilities
 from Cantera.gases import IdealGasMix