IF a fine beam of homogeneous cathode rays is sent nearly normally through a thin celluloid film (of the order 3 × 10 6 cm. thick) and then received on a photographic plate 10 cm. away and ...

This improves process latitude (e.g., depth of focus, exposure latitude) and also reduces reflective notching and thin-film interference effects. The imaged pattern in the thin-film resist processed ...

THE effect described by Mr. J. H. Coste in NATURE of May 13, p. 691, is a manipulation variation of the interaction reported by me in NATURE of March 12, 1932, p. 401, as a new observation.