Sepia print depicting Sir William Crookes in 'Vanity Fair'
William Makepeace Thackeray (b.1811, d.1863)
Sepia-coloured print depicting Sir William Crookes, caricaturing his twirled moustache and shown holding cathode-ray tube. Copy of illustraiton in 'Vanity Fair' by Thackeray.
Printed on label on the mount of the smaller reproduction: "Sir William Crookes, 1832-1919/It is the borderland of chemistry and physics that the researches of Sir William/Crookes, by training a chemist, are related to medicine. His investigations cover many/fields. He discovered thallium, separated uranium-X, and invented the radiometer and/Crookes Tube, a high vacuum tube in which he studied the cathode rays. These/played their part in the discovery of the X-rays and are now known to be electrons."
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