This article is unavailable. Au, Y. H. J., 1996, Condition Monitoring in Manufacturing and Engineering Industries. Contribution of a chapter in Handbook of Condition Monitoring, Rao B. K. N. (Editor), Elsevier, pp. 151 – 169. (ISBN 1 856 17234) If you wish to obtain a copy please contact the author below: Joe.Au@brunel.ac.uk