From the National Gallery Laboratory
By: With a preface by Sir William Bragg and an introduction and notes by Ian Rawlins.
Contributors: Rawlins, Francis Ian Gregory, 1895-
Publisher: Printed for the Trustees
Published: 1940
Place of publication: London
Language: eng
Number of pages: 50
Subjects: Painting -- Expertising.; Expertising, X-ray.
Notes: "The ether waves which are just too long to have any effect upon the eye, and the X-ray waves which are also invisible because they are far too short, are shown in this book to have a very interesting story of their own to tell about ancient paintings."--Pref.