The new and evolving engineering developments associated with gas turbine and jet engines, nuclear power plants, high-speed and orbital flight, and space travel have all faced significant heat transfer problems. It was the response to these problems that swelled the ranks of heat transfer engineers who then proceeded to elevate heat transfer from an art that relied heavily on empirically correlated data to an engineering science that now embraces a healthy union of analysis and experimentation. This rapid expansion of heat- and mass-transfer engineers prompted M.I.T. to organize an annual two-week intensive course on new developments in heat transfer. This book represents the content of the 1964 version of the course.