Another addition to the Bioscope Library. Henry Hopwood (1866-1919) was Custodian in the Library of the Patent Office in Chancery Lane, London. His Living Pictures is a comprehensive history and handbook on the technology of the new science of motion pictures, published first in 1899 and then in a revised edition by his colleague R.B. Foster in 1915. It is a thorough, knowledgable account of the subject, based around patent applications, but expressed in an engaging and sometimes philosophical style which makes it a pleasure to read today. It still used as a standard reference source.The 1915 revision is available for downloading from the Intenet Archive in DjVu (16MB), PDF (45MB) and TXT (570KB) formats.