diff --git a/applications/utilities/mesh/manipulation/checkMesh/writeFields.C b/applications/utilities/mesh/manipulation/checkMesh/writeFields.C
index 1cdc3dbe61..73e02328b0 100644
--- a/applications/utilities/mesh/manipulation/checkMesh/writeFields.C
+++ b/applications/utilities/mesh/manipulation/checkMesh/writeFields.C
@@ -97,7 +97,7 @@ void Foam::writeFields
         (
             radToDeg
             (
-                Foam::acos(min(1.0, faceOrthogonality))
+                Foam::acos(min(scalar(1.0), faceOrthogonality))
             )
         );
 
diff --git a/src/fileFormats/stl/STLpoint.H b/src/fileFormats/stl/STLpoint.H
index f6c1f2ea92..150df6f7de 100644
--- a/src/fileFormats/stl/STLpoint.H
+++ b/src/fileFormats/stl/STLpoint.H
@@ -34,7 +34,6 @@ Description
 
 #include "point.H"
 #include "floatVector.H"
-#include "Istream.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -58,36 +57,30 @@ public:
         inline STLpoint()
         {}
 
-        //- Construct from base class
-        inline STLpoint(const floatVector& v)
+        //- Construct from single-precision point
+        inline STLpoint(const Vector<float>& p)
         :
-            floatVector(v)
+            floatVector(p)
         {}
 
-        //- Construct from components
+        //- Construct from double-precision point
+        inline STLpoint(const Vector<double>& p)
+        :
+            floatVector(float(p.x()), float(p.y()), float(p.z()))
+        {}
+
+        //- Construct from single-precision components
         inline STLpoint(float x, float y, float z)
         :
             floatVector(x, y, z)
         {}
 
-        //- Construct from components
+        //- Construct from double-precision components
         inline STLpoint(double x, double y, double z)
         :
             floatVector(float(x), float(y), float(z))
         {}
 
-        //- Construct from point
-        inline STLpoint(const point& pt)
-        :
-            floatVector(float(pt.x()), float(pt.y()), float(pt.z()))
-        {}
-
-        //- Construct from istream
-        inline STLpoint(Istream& is)
-        :
-            floatVector(is)
-        {}
-
 
     // Member Operators
 
diff --git a/src/finiteVolume/fvMatrices/solvers/isoAdvection/isoAdvection/isoAdvection.C b/src/finiteVolume/fvMatrices/solvers/isoAdvection/isoAdvection/isoAdvection.C
index 33f63c2b6c..85ebdf94b6 100644
--- a/src/finiteVolume/fvMatrices/solvers/isoAdvection/isoAdvection/isoAdvection.C
+++ b/src/finiteVolume/fvMatrices/solvers/isoAdvection/isoAdvection/isoAdvection.C
@@ -1024,7 +1024,7 @@ void Foam::isoAdvection::applyBruteForceBounding()
     bool clip = dict_.lookupOrDefault<bool>("clip", true);
     if (clip)
     {
-        alpha1_ = min(1.0, max(0.0, alpha1_));
+        alpha1_ = min(scalar(1.0), max(scalar(0.0), alpha1_));
         alpha1Changed = true;
     }