12 books • 2 series
Electroluminescence
Rectifying Semi-conductor Contacts
The Photographic World and Humour of Cuthbert Bede (Studies in Photographic Arts S., v. 4)
Exodus from Austria: Emigratio
Positive Pleasures
The Painted Photograph, 1839-1914
The Photographic Experience, 1839–1914
Periodic Precipitation
Crystals in Gels and Liesegang Rings
Semiconductor Contacts (International Series of Monographs on Physics, #70)
Crystal Growth in Gels
Imperfections & Active Centers in Semiconductors