Here is the code that i'm working with:
add_action( 'admin_menu', 'my_create_post_meta_box' );
add_action( 'save_post', 'my_save_post_meta_box', 10, 2 );
function my_create_post_meta_box() {
add_meta_box( 'my-meta-box', 'Second Excerpt', 'my_post_meta_box', 'post', 'normal', 'high' );
}
function my_post_meta_box( $object, $box ) { ?>
<p>
<label for="second-excerpt"><strong>Second Excerpt With Images for Post List Page</strong></label>
<textarea name="second-excerpt" id="second-excerpt" cols="60" rows="4" tabindex="30" style="width: 97%;"><?php echo wp_specialchars( get_post_meta( $object->ID, 'Second Excerpt', true ), 1 ); ?></textarea>
<input type="hidden" name="my_meta_box_nonce" value="<?php echo wp_create_nonce( plugin_basename( __FILE__ ) ); ?>" />
</p>
<?php }