This is an account of the growth and uses of Western learning in Japan from 1720 to 1830. These are the dates of the beginning of official interest in Western learning and of the expulsion of Siebold from the country, the first stage of a crisis that could be resolved only by the opening of the country of the West. The century and more included by the two dates was a most important period in Japanese history, when intellectuals, rebelling at the...