Books dealing with individual philosophers as well as annotated translations of their works are very much in need in the field of classical Indian philos- ophy. Hence the research efforts of modern scholars should increasingly be devoted to this objective. Professor M. Tachikawa has selected a very short elementary treatise of Udayana as well as some portions of a larger work of the same author to supplement the first. His aim is to present to us, in Udayana's own term, how he (Udayana) sees the Nyaya-VaiSe~ika system in a synoptic fashion. I wish to take this opportunity to say a few things...