This book has been produced in response to an insistent demand from
color workers for exhaustive information on the many forms of research
that have developed the various color processes of photography into the
usable condition in which they are found today. This subject was covered
very completely by Professor Wall up to the time of the publication of
his famous book, ""The History of Three-Color Photography,"" in 1925.
But the demand for that work was so great that it has long been out of
print and its information is no longer generally available. Even if it
were, color photography has progressed so rapidly in the past twenty
years that information as of that date could tell no more than half the
story of today. To the stupendous task of ferreting out and compiling
into coherent and usable form all this accumulated data, Dr. Friedman
brings a splendid preparation. After graduating from Harvard and taking
his doctorate at the University of Chicago, he plunged directly into
color work on the staff of Technicolor which was then evolving its
famous process in Boston. Through the years he has been actively
identified with the development of many forms of color photography and
is at present on the research staff of Ansco. He has long been known as
a prolific and authoritative writer on this subject, and of late years
his department in American Photography has been a general clearinghouse
of information about its latest aspects. This book will be found
invaluable to anyone who needs the complete record of what has gone
before in any existing department of color photography. Starting with
the earliest ideas of colorimetry, it traces the development of all the
laboratory and commercial processes by which color has been evolved to
its present-day applications, enumerating the underlying principles,
describing the technique, and giving the history of the patents that
have been issued concerning them. The record is as complete as it is
humanly possible to achieve and contains compactly compiled and
correlated information that is nowhere else available without very
extensive research. For anyone who wants to get a detailed and
comprehensive picture of color photography as a whole, or who needs
specific information about any of its special developments, no effort
has been spared to make this book as complete and valuable as possible.
