Sequential Medical Trials, 2nd Edition

morphology at the macroscopic, microscopic and ultrastructural levels. Wherever appropriate, he goes from structure into function and introduces concepts involving histochemistry, biochemistry, biophysics and bioengineering. The book is easy to read and presents the material in a very concise fashion and focuses upon the need for more extensive microcirculatory research. As an introduction to the biology of blood vessels, this volume is valuable for the novice in the field. It is also a very adequate means for the more experienced investigator to acquire a perspective on less familiar areas such as the wide variation in morphology among organisms, as well as within the various organs of a given species. JOHN A. OGDEN Section of Orthopedic Surgery Yale University School of Medicine