Two properties of Joseph Needham are at once apparent: the nearly incredible display of learning he is able to muster, and the frankly tendentious character of his writing. His tendentiousness is without guile and often charming. Whether or not it invalidates his work as a historian of science is a matter on which we are willing to reserve judgment. Indeed, we have no choice, for he has taken the unusual measure--it is, among other things, a master-stroke of publicity--of devoting both (...) volumes that have thus far appeared to a series of leisurely propaedeutic essays in which the narrative of scientific history as such plays no part. (shrink)