Compare Collections

This view lists every matching collection in two dropdowns, and there are 8636 of them — more than the 5000 it can display at once. Open Compare Collections from a workspace or from a filtered image list so the comparison is scoped to a smaller set.

Cookies on Atrium

Atrium uses cookies that are necessary to sign you in and to keep forms secure. It can also use cookies that remember your display preferences, and it can load maps from Google. Those two are off unless you turn them on. Nothing here measures how you use the site.

You can change this at any time from the Cookie preferences link in the footer. Your choice is kept for 180 days. See what each cookie does.

Choose which cookies to accept

Strictly necessary — always on Keeps you signed in, protects forms against cross-site request forgery, and remembers this choice about cookies. The site cannot work without them, so they are always on and no consent is asked for. Cookies: PHPSESSID, atrium_consent, zoomifyImageCopyright

Preferences Remembers display choices so they survive between pages: sort order, rows per page, interface language, whether empty taxa are listed, and the username on the login form. Without these, sorting and paging still work but reset to the default on each new page, and the login form does not pre-fill your username. Cookies: language, sort_type, page_control_number, show_empty_taxon, show_image_previews, show_collections_without_images, browse_levels, brit_username

Maps and embedded content Loads interactive and static maps from Google Maps. Sends your IP address to Google and lets Google set its own cookies. Declining replaces each map with a notice and a button that loads it on request. Cookies: NID, googtrans