Page 5 — Based on a figure in Curtis, H., Biology (4th edition). Worth Publishers, New York, 1983. 
55 
Pages 6, 8 — National Library of Medicine, NIH. 
Page 10 — (upper left) National Institute of Diabetes and Digestive and Kidney Diseases, NIH; (lower right) 
Palade, G., University of California, San Diego. 
Pages 15, 21 — Based on figures in Darnell, J., Lodish, H., and Baltimore, D., Molecular Cell Biology. 
Scientific American Books, Inc., New York, 1986. 
Pages 22, 23 (bottom) — Yunis, J.J., Human Pathology 12:494. W.B. Saunders Company, Philadelphia, 1981. 
Pages 23, 26, 27 — Watson, J.D., Tooze, J., and Kurtz, D.T. , Recombinant DNA: A Short Course. W.H. 
Freeman and Company, New York, 1983. 
Pages 29 (top), 30, 32, 37, 46 — Friend, D.S., Brigham and Women’s Hospital. 
Pages 29 (bottom two), 31, 38 — Based on figures in Luciano, D.S., Vander, A.J., and Sherman, J.H., 
Human Anatomy and Physiology (2nd edition). McGraw-Hill Book Company, New York, 1983. 
Pages 34, 45, 47, 49 — Based on figures in Alberts, B., Bray, D., Lewis, J., Raff, M., Roberts, K., and 
Watson, J.D., Molecular Biology of the Cell. Garland Publishing, Inc., New York, 1983. 
Page 40 — Fujiwara, K., National Cardiovascular Center Research Institute, Suita City, Osaka, Japan. 
Page 42 — Based on a figure in The Washington Post, December 28, 1986. 
Illustrations on cover and on pages 5, 15, 18, 19, 21, 29, 31, 34, 38, 42, 45, 47, and 49 were 
originally drawn by Trudy Nicholson. Some have been modified by Rick Myerchalk. 
