Ever since the first volume appeared in 1969, this series has received good reviews in a variety of periodicals published in different corners of 'the world. It would seem that the work has fulfilled its purpose as outlined in the Preface to Volume 1. The rapidly increasing interest in surface and colloid science by people engaged in industrial research and development, and in environmental, ecological, medical, pharmaceutical, and other areas, justifies the continuation of such an effort. After nine volumes with John Wiley and Sons, this and subsequent volumes will-by mutual consent-be...