A practical work describing methods of dissection and physiological experiment, 'Anatomical Procedures' is a transcription of lectures given in Rome in 177 CE. There is no comparable work in ancient literature and none more influential in the history of modern anatomy. Singer provides a translation of the surviving Greek text (Books I-IX) and in his introduction discusses the various schools of medicine in Imperial Rome, the problems of translating a work written without an existing technical vocabulary, and Galen's use of Rhesus monkeys. (1956)