Institutional ordering

We welcome orders from institutions by purchase order.

Instead of going through our online checkout please email your purchase order to

Your order will be despatched within two working days and you will be invoiced with 30 days to pay.

You may find the Wishlist feature useful. Every product has an 'Add to my collection' button. Your list is auto-saved when you leave the site so you can return to it on future visits. The list has an email option so you can share it with colleagues and send it to us when ready to order.

Please feel free to get in touch if you have any questions about buying by purchase order.