Aquarium.

Explorer William Beebe, who was hired in 1899 by the National Geographic Society, was the first naturalist to study ocean life at great depth.

Using a bathysphere -- a floating deep-sea observatory -- Dr. Beebe explored the waters of Bermuda from 1932 to 1934. One of his associates for the Bermudian project was German artist Else Bostelmann.

Mrs. Bostelmann worked with Dr. Beebe's hastily drawn sketches, the descriptions he telephoned from the bathysphere to a boat and with some actual specimens brought up from the ocean.

From a studio in Castle Harbour, Mrs. Bostelmann created watercolours of the underwater life Dr. Beebe captured.

For many years several of the paintings, a gift from Dr. Beebe to the Bermuda Aquarium, have been in the care of the Archives.

The Bostelmann Paints For Beebe exhibition opens on October 18.

The gallery will also showcase Dr. Beebe's diving helmet, copies of vintage photographs of Mrs. Bostelmann and Dr. Beebe and a replica bathysphere will be installed on the steps of City Hall.

And artist Will Collieson will transform the Ondaatje Wing into a bathysphere-like interior.

NEW SPECIES -- An Else Bostelmann painting depicting some of Dr. Charles Beebe's discoveries -- fish with their own rods, line, luminous bait and cluster of three hooks.