diff --git a/Makefile b/Makefile
index 158d7f2d..7470a28a 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,7 @@ SRC_FILES = \
 	src/start.js \
 	src/array.js \
 	src/blend.js \
+	src/call.js \
 	src/range.js \
 	src/ns.js \
 	src/dispatch.js \
diff --git a/d3.js b/d3.js
index 6099a323..f8e2ce09 100644
--- a/d3.js
+++ b/d3.js
@@ -8,13 +8,19 @@ if (!Object.create) Object.create = function(o) {
 };
 (function(_) {
   var d3 = _.d3 = {};
-  d3.version = "0.1.0"; // semver
+  d3.version = "0.1.1"; // semver
 function d3_array(psuedoarray) {
   return Array.prototype.slice.call(psuedoarray);
 }
 function d3_blend(arrays) {
   return Array.prototype.concat.apply([], arrays);
 }
+function d3_call(callback, var_args) {
+  var_args = d3_array(arguments);
+  var_args[0] = this;
+  callback.apply(this, var_args);
+  return this;
+}
 /**
  * @param {number} start
  * @param {number=} stop
@@ -1155,6 +1161,35 @@ function d3_selection(groups) {
         ? styleFunction : styleConstant));
   };
 
+  groups.property = function(name, value) {
+    name = d3.ns.qualify(name);
+
+    // If no value is specified, return the first value.
+    if (arguments.length < 2) {
+      return first(function() {
+        return this[name];
+      });
+    }
+
+    function propertyNull() {
+      delete this[name];
+    }
+
+    function propertyConstant() {
+      this[name] = value;
+    }
+
+    function propertyFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) delete this[name];
+      else this[name] = x;
+    }
+
+    return groups.each(value == null
+        ? propertyNull : (typeof value == "function"
+        ? propertyFunction : propertyConstant));
+  };
+
   groups.text = function(value) {
 
     // If no value is specified, return the first value.
@@ -1252,6 +1287,8 @@ function d3_selection(groups) {
     return d3_transition(groups, name);
   };
 
+  groups.call = d3_call;
+
   return groups;
 }
 
@@ -1414,6 +1451,8 @@ function d3_transition(groups, name) {
     return transition;
   };
 
+  transition.call = d3_call;
+
   return transition.delay(0).duration(250);
 }
 var d3_timer_queue = null,
diff --git a/d3.min.js b/d3.min.js
index 85bb701f..96a1a793 100644
--- a/d3.min.js
+++ b/d3.min.js
@@ -1,41 +1,42 @@
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+return e};k.sqrt=function(){return k.pow().exponent(0.5)};k.ordinal=function(){function a(b){b=b in e?e[b]:e[b]=c.push(b)-1;return f[b%f.length]}var c=[],e={},f=[],d=0;a.domain=function(b){if(!arguments.length)return c;c=b;e={};for(var h=-1,i=-1,g=c.length;++h<g;){b=c[h];b in e||(e[b]=++i)}return a};a.range=function(b){if(!arguments.length)return f;f=b;return a};a.rangePoints=function(b,h){if(arguments.length<2)h=0;var i=b[0],g=b[1],m=(g-i)/(c.length-1+h);f=c.length==1?[(i+g)/2]:k.range(i+m*h/2,g+
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+d=function(b){return b.endAngle};a.innerRadius=function(b){c=typeof b=="function"?b:function(){return b};return a};a.outerRadius=function(b){e=typeof b=="function"?b:function(){return b};return a};a.startAngle=function(b){f=typeof b=="function"?b:function(){return b};return a};a.endAngle=function(b){d=typeof b=="function"?b:function(){return b};return a};return a};k.line=function(){function a(f){var d=[],b=0,h=f[0];for(d.push("M",c.call(this,h,b),",",e.call(this,h,b));h=f[++b];)d.push("L",c.call(this,
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+a.y1=function(d){f=d;return a};return a}})(this);
diff --git a/src/call.js b/src/call.js
new file mode 100644
index 00000000..e8e4f55a
--- /dev/null
+++ b/src/call.js
@@ -0,0 +1,6 @@
+function d3_call(callback, var_args) {
+  var_args = d3_array(arguments);
+  var_args[0] = this;
+  callback.apply(this, var_args);
+  return this;
+}
diff --git a/src/selection.js b/src/selection.js
index 5bc304e6..aac6b23f 100644
--- a/src/selection.js
+++ b/src/selection.js
@@ -269,6 +269,35 @@ function d3_selection(groups) {
         ? styleFunction : styleConstant));
   };
 
+  groups.property = function(name, value) {
+    name = d3.ns.qualify(name);
+
+    // If no value is specified, return the first value.
+    if (arguments.length < 2) {
+      return first(function() {
+        return this[name];
+      });
+    }
+
+    function propertyNull() {
+      delete this[name];
+    }
+
+    function propertyConstant() {
+      this[name] = value;
+    }
+
+    function propertyFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) delete this[name];
+      else this[name] = x;
+    }
+
+    return groups.each(value == null
+        ? propertyNull : (typeof value == "function"
+        ? propertyFunction : propertyConstant));
+  };
+
   groups.text = function(value) {
 
     // If no value is specified, return the first value.
@@ -366,6 +395,8 @@ function d3_selection(groups) {
     return d3_transition(groups, name);
   };
 
+  groups.call = d3_call;
+
   return groups;
 }
 
diff --git a/src/start.js b/src/start.js
index 4db57a28..c60973e7 100644
--- a/src/start.js
+++ b/src/start.js
@@ -1,3 +1,3 @@
 (function(_) {
   var d3 = _.d3 = {};
-  d3.version = "0.1.0"; // semver
+  d3.version = "0.1.1"; // semver
diff --git a/src/transition.js b/src/transition.js
index d981a0fb..0eae7dfd 100644
--- a/src/transition.js
+++ b/src/transition.js
@@ -150,5 +150,7 @@ function d3_transition(groups, name) {
     return transition;
   };
 
+  transition.call = d3_call;
+
   return transition.delay(0).duration(250);
 }