In the same year he built an improved diving bell.

The diving bell is used to transfer divers from the system to the work site.

Asked to lecture, he turned up in a diving bell and insisted on speaking from inside it.

They then return to the female's diving bell to mate.

This seems to have been a form of diving bell, and was depicted in a 16th-century Islamic painting.

They were no longer in the diving bell; that must remain under the sea.

Before submarines, man lowered himself down into the water in a diving bell.

A fantastic figure moved into the range of the light cast by the diving bell.

With this diving bell a much greater depth can be reached.

And this diving bell is not like any you have ever seen or read about.