diff --git a/material-ui/material-ui-tests.tsx b/material-ui/material-ui-tests.tsx
index 4c69f3410..25ea89395 100644
--- a/material-ui/material-ui-tests.tsx
+++ b/material-ui/material-ui-tests.tsx
@@ -28,6 +28,9 @@ import Menu = require('material-ui/lib/menus/menu');
 import MenuItem = require('material-ui/lib/menus/menu-item');
 import MenuDivider = require('material-ui/lib/menus/menu-divider');
 import ThemeManager = require('material-ui/lib/styles/theme-manager');
+import GridList = require('material-ui/lib/grid-list/grid-list');
+import GridTile = require('material-ui/lib/grid-list/grid-tile');
+
 
 import NavigationClose = require("material-ui/lib/svg-icon");  // TODO: Should actually import the actual "material-ui/lib/svg-icons/navigation/close", but they aren't defined yet.
 import FileFolder = require("material-ui/lib/svg-icon");  // TODO: Should actually import the actual "material-ui/lib/svg-icons/file/folder", but they aren't defined yet.
@@ -456,12 +459,29 @@ class MaterialUiTests extends React.Component<{}, {}> implements React.LinkedSta
             hintText="Password Field"
             floatingLabelText="Password"
             type="password" />;
-
+            
 
         // "http://material-ui.com/#/components/time-picker"
 
 
         // "http://material-ui.com/#/components/toolbars"
+        
+        // "http://material-ui.com/#/components/grid-list"
+        element = <GridList
+            cols={3}
+            padding={50}
+            cellHeight={200} />;
+            
+        element = <GridTile
+            title="GridTileTitle"
+            actionIcon={<h1>GridTile</h1>}
+            actionPosition="left"
+            titlePosition="top"
+            titleBackground="rgba(0, 0, 0, 0.4)"
+            cols={2}
+            rows={1} >
+            <h1>Children are Required!</h1>
+            </GridTile>;
 
         return element;
     }
diff --git a/material-ui/material-ui.d.ts b/material-ui/material-ui.d.ts
index ecd32ae06..f9f15b937 100644
--- a/material-ui/material-ui.d.ts
+++ b/material-ui/material-ui.d.ts
@@ -1,6 +1,6 @@
-// Type definitions for material-ui v0.12.1
+// Type definitions for material-ui v0.13.1
 // Project: https://github.com/callemall/material-ui
-// Definitions by: Nathan Brown <https://github.com/ngbrown>
+// Definitions by: Nathan Brown <https://github.com/ngbrown>, Oliver Herrmann <https://github.com/herrmanno>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
 ///<reference path='../react/react.d.ts' />
@@ -71,6 +71,9 @@ declare module "material-ui" {
     export import ToolbarTitle = __MaterialUI.Toolbar.ToolbarTitle; // require('material-ui/lib/toolbar/toolbar-title');
     export import Tooltip = __MaterialUI.Tooltip; // require('material-ui/lib/tooltip');
     export import Utils = __MaterialUI.Utils; // require('material-ui/lib/utils/');
+    
+    export import GridList = __MaterialUI.GridList.GridList; // require('material-ui/lib/gridlist/grid-list');
+    export import GridTile = __MaterialUI.GridList.GridTile; // require('material-ui/lib/gridlist/grid-tile');
 
     // export type definitions
     export type TouchTapEvent = __MaterialUI.TouchTapEvent;
@@ -1120,6 +1123,7 @@ declare namespace __MaterialUI {
             tabItemContainerStyle?: React.CSSProperties;
             tabWidth?: number;
             value?: string | number;
+            tabTemplate?: __React.ComponentClass<any>;
 
             onChange?: (value: string | number, e: React.FormEvent, tab: Tab) => void;
         }
@@ -1240,6 +1244,10 @@ declare namespace __MaterialUI {
         defaultTime?: Date;
         format?: string;
         pedantic?: boolean;
+        style?: __React.CSSProperties;
+        textFieldStye?: __React.CSSProperties;
+        autoOk?: boolean;
+        openDialog?: () => void;
         onFocus?: React.FocusEventHandler;
         onTouchTap?: TouchTapEventHandler;
         onChange?: (e: any, time: Date) => void;
@@ -1266,6 +1274,7 @@ declare namespace __MaterialUI {
         underlineFocusStyle?: React.CSSProperties;
         underlineDisabledStyle?: React.CSSProperties;
         type?: string;
+        hintStyle?: React.CSSProperties;
 
         disabled?: boolean;
         isRtl?: boolean;
@@ -1470,6 +1479,34 @@ declare namespace __MaterialUI {
         export class MenuDivider extends React.Component<MenuDividerProps, {}>{
         }
     }
+    
+    namespace GridList {
+        
+        interface GridListProps extends React.Props<GridList> {
+            cols?: number;
+            padding?: number;
+            cellHeight?: number;
+        }
+        
+        export class GridList extends React.Component<GridListProps, {}>{
+        }
+        
+        interface GridTileProps extends React.Props<GridTile> {
+            title?: string;
+            subtitle?: __React.ReactNode;
+            titlePosition?: string; //"top"|"bottom"
+            titleBackground?: string;
+            actionIcon?: __React.ReactElement<any>;
+            actionPosition?: string; //"left"|"right"
+            cols?: number;
+            rows?: number;
+            rootClass?: string | __React.Component<any,any>;
+        }
+        
+        export class GridTile extends React.Component<GridTileProps, {}>{
+        }
+        
+    }
 }    // __MaterialUI
 
 declare module 'material-ui/lib/app-bar' {
@@ -1952,6 +1989,16 @@ declare module "material-ui/lib/menus/menu-divider" {
     export = MenuDivider;
 }
 
+declare module "material-ui/lib/grid-list/grid-list" {
+    import GridList = __MaterialUI.GridList.GridList;
+    export = GridList;
+}
+
+declare module "material-ui/lib/grid-list/grid-tile" {
+    import GridTile = __MaterialUI.GridList.GridTile;
+    export = GridTile;
+}
+
 declare module "material-ui/lib/styles/colors" {
     import Colors = __MaterialUI.Styles.Colors;
     export = Colors;