diff --git a/source/Layer.cpp b/source/Layer.cpp
index c721962..821000a 100644
--- a/source/Layer.cpp
+++ b/source/Layer.cpp
@@ -164,23 +164,3 @@ Json::Value Layer::toJson() const
 	return layer;
 
 }
-
-arma::mat Layer::up_pass(const arma::mat &hidden)
-{
-	arma::mat reconstruction = toVisibleProbs(hidden);
-	if (next)
-	{
-		return next->up_pass(reconstruction);
-	}
-	return toHiddenProbs(reconstruction);
-}
-
-arma::mat Layer::down_pass(const arma::mat &visible)
-{
-	arma::mat hidden = toHiddenProbs(visible);
-	if (prev)
-	{
-		return prev->down_pass(hidden);
-	}
-	return toVisibleProbs(hidden);
-}
diff --git a/source/Layer.hpp b/source/Layer.hpp
index 2cbb027..4837847 100644
--- a/source/Layer.hpp
+++ b/source/Layer.hpp
@@ -34,8 +34,6 @@ public:
 	bool loadWeights(const std::string &prjname="");
 	bool saveWeights(const std::string &prjname="");
 
-	arma::mat up_pass(const arma::mat& hidden);
-	arma::mat down_pass(const arma::mat& visible);
 	void train(arma::mat const &batch, IListener *pListener=nullptr)
 	{
 		Rbm::train(trainingData(batch), pListener);