Crookes tube

The whole party began to look uneasy and gazed apprehensively at the huge Crookes tube which still stood in its supporting frame on the table.

My idealizator is the means of transforming psychons to quanta, just as, for instance, a Crookes tube or X-ray tube transforms matter to electrons.

The atoms of matter were breaking down in Crookes tubes.

On that day Dr. Röntgen was working with a Crookes tube in his laboratory.

The phenomena produced both inside and outside a Crookes tube are, however, generally complex.