This book represents a compilation of papers presented at a symposium on
the subject "Suspended Solids in Hater." held in Santa Barbara.
California. U.S.A .- on March 20. 2] and 22, 1973. The symposium was
sponsored by the Office of Naval Research and was designed to bring
together a group that represented the domi- nant cross section of
international research in this area. The idea for the conference
originated as ONR recognized a potentially interesting area that, to
date. had not had the benefit of a co- ordinating symposium and/or a
book published on the specific sub- ject. In addition to the formal
presentation of papers - informal open discussions followed - the
symposium included two stimulating workshops. An abundance of impromptu
exchange filled unscheduled periods. Many of the contributors have
incorporated in their pa- pers the ideas and points raised in
discussions following formal presentation and at other times. The reader
thus actually profits from the various discussions throughout the
meeting. The two half-day workshops were directed toward the subjects of
sampling and concentrating suspended materials and in situ in-
strumentation. I have summarized the discussions from the two workshops
for the reader and have correlated the material wherever possible in an
introductory chapter. I have also included intro- ductory material to
acquaint the newcomer with the general field.