Short exhibit description snippet on exhibit browse page

I'd like to include short snippets (~250 characters) of my exhibit descriptions on my exhibit browse page. I've got a sneaking suspicion the problem/answer must be something rather obvious to another set of eyes.

The relevant bit of my code in plugins/ExhibitBuilder/views/public/exhibits/browse.php goes as such:

<div id="exhibits">
    <?php $exhibitCount = 0; ?>
    <?php while(loop_exhibits()): ?>
    	<?php $exhibitCount++; ?>
    	<div class="exhibit <?php if ($exhibitCount%2==1) echo ' even'; else echo ' odd'; ?>">
    		<h2><?php echo link_to_exhibit(); ?></h2>
    		<div class="description"><?php echo exhibit('Description', array('snippet' => 300)); ?></div>
    <?php endwhile; ?>

In the page that results, though, the description is there, in full, un-snipped. Any clues?

Unlike item(), the Exhibit Builder's exhibit() function doesn't support many options, including the 'snippet' option.

Instead, you can pass the output from exhibit() to Omeka's snippet() helper:

<?php echo snippet(exhibit('Description'), 0, 300); ?>