The BSA has just made available online the entirety of its teaching slide collection, totalling 799 photos. Users can access the images by browsing fourteen topical slide sets or via a keyword search engine. Images are offered as thumbnailed JPEGs which link to medium-resolution images. High-resolution images are also available. Links at the top of each slide set thumbnail page lead to a text list of the set, which curiously does not always match the previous page. Users should note that this is a preview, and the site officially opens on August 1.