and Akio Morishima.' Cambridge (Massachusetts) and London: MIT Press, 1981. Pp. xxi, 525. $60.00. Reviewed by Peter W. Schroth'Japan is at least as industrialized as the United States, and has a population over half as large crowded into a chain of islands whose total land area is substantially less than that of California. Of the industrialized countries, only Belgium and the Netherlands have a larger population per square mile, and even this understates the crowding, for most of Japan is mountainous and only marginally habitable. Accordingly, Japan's industrial pollution problems showed up earlier, and are intrinsically more serious and less tractable than those of the United States. As a result (though the story is more complicated than this makes it seem), Japan's environmental law developed faster, and in several respects further, than that of the United States. Japan today is the only major country whose environmental law is further developed, in important ways, than ours, and (at the risk of joining the chorus of writers on the benefits of Japanese management, I will assert that) we have something to learn from her.

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Cet article présente une gamme de générateurs d'impulsions couvrant les tensions allant de 5 kV à 600 kV. Les caractéristiques des impulsions obtenues sont : un front de montée très raide et une parfaite reproductibilité. Le délai des générateurs est ramené à des valeurs très faibles avec un jitter négligeable