I realize this is a little late for our lab practical but I have put together a PowerPoint presentation that has pictures of all the shells that we identified in lab. If you would like me to send you the presentation, I would be more than happy to attach it to an email. Just shoot me an email at firstname.lastname@example.org and I'll send you a copy. I'll check my email before I go to bed but if you still want the PowerPoint regardless, I can still send it to you. Just thought I would offer.