Lorrence H. Green and  Emanuel Goldman

 This generation of the Practical Handbook of Microbiology is due in large part to the dedica tion and perseverance of a former editor at CRC Press, Judith Spiegel. She saw the need for the book, cultivated a relationship with the scientific editors, and facilitated the process of approvals and preparation of this large project. Most of the contributors to the first edition were no longer available to update their chapters, although we were able to locate a few who were still active in the field and were willing to contribute to the second edition, for which we are most grateful. We would also like to acknowledge the able assistance of CRC staff in the production of the book, especially Jill Jurgensen, as well as Theresa Delforn, Karen Simon, and Barbara Norwitz. Finally, this book would not have been possible without the great efforts of so many contributors. We salute them all.