diff --git a/exports/ol/coordinate.js b/exports/ol/coordinate.js
index 71dbf84e3f..7b30587e78 100644
--- a/exports/ol/coordinate.js
+++ b/exports/ol/coordinate.js
@@ -1,5 +1,3 @@
 goog.require('ol.Coordinate');
 
 goog.exportSymbol('ol.Coordinate', ol.Coordinate);
-goog.exportProperty(ol.Coordinate.prototype,
-    'clone', ol.Coordinate.prototype.clone);
diff --git a/exports/ol/extent.js b/exports/ol/extent.js
index 639c8ce0ef..fe264241bc 100644
--- a/exports/ol/extent.js
+++ b/exports/ol/extent.js
@@ -1,5 +1,3 @@
 goog.require('ol.Extent');
 
 goog.exportSymbol('ol.Extent', ol.Extent);
-goog.exportProperty(ol.Extent.prototype,
-    'clone', ol.Extent.prototype.clone);
diff --git a/src/ol/color.js b/src/ol/color.js
index 43e8e0c17f..03b30ce06e 100644
--- a/src/ol/color.js
+++ b/src/ol/color.js
@@ -46,11 +46,3 @@ ol.Color.createFromString = function(str, opt_a) {
   var a = opt_a || 255;
   return new ol.Color(rgb[0], rgb[1], rgb[2], a);
 };
-
-
-/**
- * @return {ol.Color} Clone.
- */
-ol.Color.prototype.clone = function() {
-  return new ol.Color(this.r, this.g, this.b, this.a);
-};
diff --git a/src/ol/coordinate.js b/src/ol/coordinate.js
index f9521a1b11..38aa293044 100644
--- a/src/ol/coordinate.js
+++ b/src/ol/coordinate.js
@@ -21,11 +21,3 @@ goog.inherits(ol.Coordinate, goog.math.Vec2);
  * @type {ol.Coordinate}
  */
 ol.Coordinate.ZERO = new ol.Coordinate(0, 0);
-
-
-/**
- * @return {ol.Coordinate} Clone.
- */
-ol.Coordinate.prototype.clone = function() {
-  return new ol.Coordinate(this.x, this.y);
-};
diff --git a/src/ol/extent.js b/src/ol/extent.js
index dc6288ae7b..b8812eb1f3 100644
--- a/src/ol/extent.js
+++ b/src/ol/extent.js
@@ -41,10 +41,12 @@ ol.Extent.boundingExtent = function(var_args) {
 
 
 /**
- * @return {ol.Extent} Extent.
+ * @param {ol.Coordinate} coordinate Coordinate.
+ * @return {boolean} Contains.
  */
-ol.Extent.prototype.clone = function() {
-  return new ol.Extent(this.minX, this.minY, this.maxX, this.maxY);
+ol.Extent.prototype.contains = function(coordinate) {
+  return this.minX <= coordinate.x && coordinate.x <= this.maxX &&
+      this.minY <= coordinate.y && coordinate.y <= this.maxY;
 };
 
 
diff --git a/src/ol/extent_test.js b/src/ol/extent_test.js
index 4a5554e9ec..1beab436fb 100644
--- a/src/ol/extent_test.js
+++ b/src/ol/extent_test.js
@@ -3,15 +3,38 @@ goog.require('ol.Extent');
 goog.require('ol.Projection');
 
 
-function testClone() {
+function testContainsPositive() {
   var extent = new ol.Extent(1, 2, 3, 4);
-  var clonedExtent = extent.clone();
-  assertTrue(clonedExtent instanceof ol.Extent);
-  assertFalse(clonedExtent === extent);
-  assertEquals(extent.minX, clonedExtent.minX);
-  assertEquals(extent.minY, clonedExtent.minY);
-  assertEquals(extent.maxX, clonedExtent.maxX);
-  assertEquals(extent.maxY, clonedExtent.maxY);
+  assertTrue(extent.contains(new ol.Coordinate(1, 2)));
+  assertTrue(extent.contains(new ol.Coordinate(1, 3)));
+  assertTrue(extent.contains(new ol.Coordinate(1, 4)));
+  assertTrue(extent.contains(new ol.Coordinate(2, 2)));
+  assertTrue(extent.contains(new ol.Coordinate(2, 3)));
+  assertTrue(extent.contains(new ol.Coordinate(2, 4)));
+  assertTrue(extent.contains(new ol.Coordinate(3, 2)));
+  assertTrue(extent.contains(new ol.Coordinate(3, 3)));
+  assertTrue(extent.contains(new ol.Coordinate(3, 4)));
+}
+
+
+function testContainsNegative() {
+  var extent = new ol.Extent(1, 2, 3, 4);
+  assertFalse(extent.contains(new ol.Coordinate(0, 1)));
+  assertFalse(extent.contains(new ol.Coordinate(0, 2)));
+  assertFalse(extent.contains(new ol.Coordinate(0, 3)));
+  assertFalse(extent.contains(new ol.Coordinate(0, 4)));
+  assertFalse(extent.contains(new ol.Coordinate(0, 5)));
+  assertFalse(extent.contains(new ol.Coordinate(1, 1)));
+  assertFalse(extent.contains(new ol.Coordinate(1, 5)));
+  assertFalse(extent.contains(new ol.Coordinate(2, 1)));
+  assertFalse(extent.contains(new ol.Coordinate(2, 5)));
+  assertFalse(extent.contains(new ol.Coordinate(3, 1)));
+  assertFalse(extent.contains(new ol.Coordinate(3, 5)));
+  assertFalse(extent.contains(new ol.Coordinate(4, 1)));
+  assertFalse(extent.contains(new ol.Coordinate(4, 2)));
+  assertFalse(extent.contains(new ol.Coordinate(4, 3)));
+  assertFalse(extent.contains(new ol.Coordinate(4, 4)));
+  assertFalse(extent.contains(new ol.Coordinate(4, 5)));
 }
 
 
diff --git a/src/ol/pixel.js b/src/ol/pixel.js
index f799214b06..39eb9070bf 100644
--- a/src/ol/pixel.js
+++ b/src/ol/pixel.js
@@ -14,11 +14,3 @@ ol.Pixel = function(x, y) {
   goog.base(this, x, y);
 };
 goog.inherits(ol.Pixel, goog.math.Coordinate);
-
-
-/**
- * @return {ol.Pixel} Clone.
- */
-ol.Pixel.prototype.clone = function() {
-  return new ol.Pixel(this.x, this.y);
-};
diff --git a/src/ol/projection.js b/src/ol/projection.js
index 5a88da9603..2dee26c18c 100644
--- a/src/ol/projection.js
+++ b/src/ol/projection.js
@@ -350,7 +350,7 @@ ol.Projection.identityTransform = function(point) {
  * @return {ol.Coordinate} Point.
  */
 ol.Projection.cloneTransform = function(point) {
-  return point.clone();
+  return new ol.Coordinate(point.x, point.y);
 };
 
 
diff --git a/src/ol/rectangle.js b/src/ol/rectangle.js
index 3f88315d11..2b8dbc3997 100644
--- a/src/ol/rectangle.js
+++ b/src/ol/rectangle.js
@@ -41,24 +41,6 @@ ol.Rectangle = function(minX, minY, maxX, maxY) {
 };
 
 
-/**
- * @return {ol.Rectangle} Clone.
- */
-ol.Rectangle.prototype.clone = function() {
-  return new ol.Rectangle(this.minX, this.minY, this.maxX, this.maxY);
-};
-
-
-/**
- * @param {ol.Coordinate} coordinate Coordinate.
- * @return {boolean} Contains.
- */
-ol.Rectangle.prototype.contains = function(coordinate) {
-  return this.minX <= coordinate.x && coordinate.x <= this.maxX &&
-      this.minY <= coordinate.y && coordinate.y <= this.maxY;
-};
-
-
 /**
  * @return {ol.Coordinate} Center.
  */
diff --git a/src/ol/rectangle_test.js b/src/ol/rectangle_test.js
index 24ed3187ef..d5b488097d 100644
--- a/src/ol/rectangle_test.js
+++ b/src/ol/rectangle_test.js
@@ -11,41 +11,6 @@ function testCenter() {
 }
 
 
-function testContainsPositive() {
-  var rectangle = new ol.Rectangle(1, 2, 3, 4);
-  assertTrue(rectangle.contains(new ol.Coordinate(1, 2)));
-  assertTrue(rectangle.contains(new ol.Coordinate(1, 3)));
-  assertTrue(rectangle.contains(new ol.Coordinate(1, 4)));
-  assertTrue(rectangle.contains(new ol.Coordinate(2, 2)));
-  assertTrue(rectangle.contains(new ol.Coordinate(2, 3)));
-  assertTrue(rectangle.contains(new ol.Coordinate(2, 4)));
-  assertTrue(rectangle.contains(new ol.Coordinate(3, 2)));
-  assertTrue(rectangle.contains(new ol.Coordinate(3, 3)));
-  assertTrue(rectangle.contains(new ol.Coordinate(3, 4)));
-}
-
-
-function testContainsNegative() {
-  var rectangle = new ol.Rectangle(1, 2, 3, 4);
-  assertFalse(rectangle.contains(new ol.Coordinate(0, 1)));
-  assertFalse(rectangle.contains(new ol.Coordinate(0, 2)));
-  assertFalse(rectangle.contains(new ol.Coordinate(0, 3)));
-  assertFalse(rectangle.contains(new ol.Coordinate(0, 4)));
-  assertFalse(rectangle.contains(new ol.Coordinate(0, 5)));
-  assertFalse(rectangle.contains(new ol.Coordinate(1, 1)));
-  assertFalse(rectangle.contains(new ol.Coordinate(1, 5)));
-  assertFalse(rectangle.contains(new ol.Coordinate(2, 1)));
-  assertFalse(rectangle.contains(new ol.Coordinate(2, 5)));
-  assertFalse(rectangle.contains(new ol.Coordinate(3, 1)));
-  assertFalse(rectangle.contains(new ol.Coordinate(3, 5)));
-  assertFalse(rectangle.contains(new ol.Coordinate(4, 1)));
-  assertFalse(rectangle.contains(new ol.Coordinate(4, 2)));
-  assertFalse(rectangle.contains(new ol.Coordinate(4, 3)));
-  assertFalse(rectangle.contains(new ol.Coordinate(4, 4)));
-  assertFalse(rectangle.contains(new ol.Coordinate(4, 5)));
-}
-
-
 function testIntersects() {
 
   var rectangle1 = new ol.Rectangle(50, 50, 100, 100);
diff --git a/src/ol/tilecoord.js b/src/ol/tilecoord.js
index e466013ad6..9da916eaee 100644
--- a/src/ol/tilecoord.js
+++ b/src/ol/tilecoord.js
@@ -76,14 +76,6 @@ ol.TileCoord.createFromString = function(str) {
 };
 
 
-/**
- * @return {ol.TileCoord} Clone.
- */
-ol.TileCoord.prototype.clone = function() {
-  return new ol.TileCoord(this.z, this.x, this.y);
-};
-
-
 /**
  * @return {number} Hash.
  */
diff --git a/src/ol/tilerange.js b/src/ol/tilerange.js
index 0d00f0aa60..db4d13f051 100644
--- a/src/ol/tilerange.js
+++ b/src/ol/tilerange.js
@@ -41,14 +41,6 @@ ol.TileRange.boundingTileRange = function(var_args) {
 };
 
 
-/**
- * @return {ol.TileRange} Clone.
- */
-ol.TileRange.prototype.clone = function() {
-  return new ol.TileRange(this.minX, this.minY, this.maxX, this.maxY);
-};
-
-
 /**
  * @param {ol.TileCoord} tileCoord Tile coordinate.
  * @return {boolean} Contains tile coordinate.
diff --git a/src/ol/tilerange_test.js b/src/ol/tilerange_test.js
index deff933763..7a8c17c46b 100644
--- a/src/ol/tilerange_test.js
+++ b/src/ol/tilerange_test.js
@@ -2,18 +2,6 @@ goog.require('goog.testing.jsunit');
 goog.require('ol.TileRange');
 
 
-function testClone() {
-  var tileRange = new ol.TileRange(1, 2, 3, 4);
-  var clonedTileRange = tileRange.clone();
-  assertTrue(clonedTileRange instanceof ol.TileRange);
-  assertFalse(clonedTileRange === tileRange);
-  assertEquals(tileRange.minX, clonedTileRange.minX);
-  assertEquals(tileRange.minY, clonedTileRange.minY);
-  assertEquals(tileRange.maxX, clonedTileRange.maxX);
-  assertEquals(tileRange.maxY, clonedTileRange.maxY);
-}
-
-
 function testContains() {
   var tileRange = new ol.TileRange(1, 1, 3, 3);
   assertFalse(tileRange.contains(new ol.TileCoord(0, 0, 0)));
@@ -70,7 +58,7 @@ function testForEachTileCoord() {
 
   var tileCoords = [];
   tileRange.forEachTileCoord(5, function(tileCoord) {
-    tileCoords.push(tileCoord.clone());
+    tileCoords.push(new ol.TileCoord(tileCoord.z, tileCoord.x, tileCoord.y));
   });
 
   assertEquals(4, tileCoords.length);