diff --git a/ActiveResource.php b/ActiveResource.php
index 0747b4d..892a06d 100644
--- a/ActiveResource.php
+++ b/ActiveResource.php
@@ -66,10 +66,15 @@ class ActiveResource {
 	var $password = null;
 	
 	/**
-	 * The remote collection, e.g., person or things
+	 * The remote collection, e.g., person or thing
 	 */
 	var $element_name = false;
 
+	/**
+	 * Pleural form of the element name, e.g., people or things
+	 */
+	var $element_name_plural = '';
+
 	/**
 	 * The data of the current object, accessed via the anonymous get/set methods.
 	 */
@@ -152,7 +157,8 @@ class ActiveResource {
 	function __construct ($data = array ()) {
 		$this->_data = $data;
 		// Allow class-defined element name or use class name if not defined
-		$this->element_name = ($this->element_name ? $this->pluralize ($this->element_name) : $this->pluralize (strtolower (get_class ($this))));
+		$this->element_name = $this->element_name ? $this->element_name : strtolower (get_class ($this));
+		$this->element_name_plural = $this->pluralize ($this->element_name);
 
 		// Detect for namespaces, and take just the class name
 		if (stripos($this->element_name, '\\'))
@@ -181,6 +187,7 @@ function pluralize ($word) {
 		$word = preg_replace ('/sises$/', 'ses', $word);
 		$word = preg_replace ('/([^aeiouy]|qu)ys$/', '\1ies', $word);
 		$word = preg_replace ('/(?:([^f])fe|([lr])f)s$/', '\1\2ves', $word);
+		$word = preg_replace ('/ieses$/', 'ies', $word);
 		if (isset ($this->pleural_corrections[$word])) {
 			return $this->pleural_corrections[$word];
 		}
@@ -202,9 +209,9 @@ function pleuralize ($word) {
 	 */
 	function save () {
 		if (isset ($this->_data['id'])) {
-			return $this->_send_and_receive ($this->site . $this->element_name . '/' . $this->_data['id'] . '.xml', 'PUT', $this->_data); // update
+			return $this->_send_and_receive ($this->site . $this->element_name_plural . '/' . $this->_data['id'] . '.xml', 'PUT', $this->_data); // update
 		}
-		return $this->_send_and_receive ($this->site . $this->element_name . '.xml', 'POST', $this->_data); // create
+		return $this->_send_and_receive ($this->site . $this->element_name_plural . '.xml', 'POST', $this->_data); // create
 	}
 
 	/**
@@ -213,7 +220,7 @@ function save () {
 	 * DELETE /collection/id.xml
 	 */
 	function destroy () {
-		return $this->_send_and_receive ($this->site . $this->element_name . '/' . $this->_data['id'] . '.xml', 'DELETE');
+		return $this->_send_and_receive ($this->site . $this->element_name_plural . '/' . $this->_data['id'] . '.xml', 'DELETE');
 	}
 
 	/**
@@ -227,13 +234,13 @@ function find ($id = false, $options = array ()) {
 			$id = $this->_data['id'];
 		}
 		if ($id == 'all') {
-			$url = $this->site . $this->element_name . '.xml';
+			$url = $this->site . $this->element_name_plural . '.xml';
 			if (count ($options) > 0) {
 				$url .= '?' . http_build_query ($options);
 			}
 			return $this->_send_and_receive ($url, 'GET');
 		}
-		return $this->_send_and_receive ($this->site . $this->element_name . '/' . $id . '.xml', 'GET');
+		return $this->_send_and_receive ($this->site . $this->element_name_plural . '/' . $id . '.xml', 'GET');
 	}
 
 	/**
@@ -243,7 +250,7 @@ function find ($id = false, $options = array ()) {
 	 * GET /collection/id/method.xml?attr=value
 	 */
 	function get ($method, $options = array ()) {
-		$req = $this->site . $this->element_name;
+		$req = $this->site . $this->element_name_plural;
         if ($this->_data['id']) { 
           $req .= '/' . $this->_data['id'];
         }
@@ -260,7 +267,7 @@ function get ($method, $options = array ()) {
 	 * POST /collection/id/method.xml
 	 */
 	function post ($method, $options = array ()) {
-		$req = $this->site . $this->element_name;
+		$req = $this->site . $this->element_name_plural;
         if ($this->_data['id']) {
           $req .= '/' . $this->_data['id'];
         }
@@ -274,7 +281,7 @@ function post ($method, $options = array ()) {
 	 * PUT /collection/id/method.xml
 	 */
 	function put ($method, $options = array ()) {
-		$req = $this->site . $this->element_name;
+		$req = $this->site . $this->element_name_plural;
         if ($this->_data['id']) { 
           $req .= '/' . $this->_data['id'];
         }
@@ -338,7 +345,7 @@ function _xml_entities ($string) {
 	 */
 	function _send_and_receive ($url, $method, $data = array ()) {
 		$params = '';
-		$el = substr ($this->element_name, 0, -1);
+		$el = $this->element_name; // Singular this time
 		if ($this->request_format == 'url') {
 			foreach ($data as $k => $v) {
 				if ($k != 'id' && $k != 'created-at' && $k != 'updated-at') {
@@ -394,7 +401,7 @@ function _send_and_receive ($url, $method, $data = array ()) {
 		// parse XML response
 		$xml = new SimpleXMLElement ($res);
 
-		if ($xml->getName () == $this->element_name) {
+		if ($xml->getName () == $this->element_name_plural) {
 			// multiple
 			$res = array ();
 			$cls = get_class ($this);
@@ -455,7 +462,7 @@ function _fetch ($url, $method, $params) {
 		}
 
 		if ($this->request_format == 'xml') {
-			curl_setopt ($ch, CURLOPT_HTTPHEADER, array ("Content-Type: text/xml", "Length: " . strlen ($params)));
+			curl_setopt ($ch, CURLOPT_HTTPHEADER, array ("Expect:", "Content-Type: text/xml", "Length: " . strlen ($params)));
 		}
 		switch ($method) {
 			case 'POST':
diff --git a/tests/ActiveResource.php b/tests/ActiveResource.php
index c799f5c..a1a33b8 100644
--- a/tests/ActiveResource.php
+++ b/tests/ActiveResource.php
@@ -13,7 +13,7 @@ function test_construct () {
 		$t->foo = 'asdf';
 		$this->assertEquals ($t->foo, 'asdf');
 		$this->assertEquals ($t->_data, array ('foo' => 'asdf'));
-		$this->assertEquals ($t->element_name, 'tests');
+		$this->assertEquals ($t->element_name_plural, 'tests');
 	}
 
 	function test_build_xml () {
@@ -66,6 +66,11 @@ function test_pleuralize () {
 		$this->assertEquals ($t->pluralize ('life'), 'lives');
 		$this->assertEquals ($t->pluralize ('wife'), 'wives');
 		$this->assertEquals ($t->pluralize ('song'), 'songs');
+		$this->assertEquals ($t->pluralize ('try'), 'tries');
+		$this->assertEquals ($t->pluralize ('tree'), 'trees');
+		$this->assertEquals ($t->pluralize ('tries'), 'tries');
+		$this->assertEquals ($t->pluralize ('entry'), 'entries');
+		$this->assertEquals ($t->pluralize ('entries'), 'entries');
 	}
 }