Like all M. Jusserand's writings, his latest book is distinguished by an attractive, straightforward style. It is not a detailed account of his experiences in America during the critical period of the war, but a simple narrative of his impressions and a study of the evolution of American sentiment. Few foreign diplomats have served so long in Washington, or been so successful in understanding the American mentality, so that this little book is of particular interest. M. Jusserand discusses with great insight not only his relations with Wilson and Bryan, but also the problems raised by the German peace manœuvres and German propaganda. With great mastery he reviews the chief incidents, like the sinking of the Lusitania and the gradual drifting of the country into war. He speaks with admiration and appreciation of the élan of the Americans after their entry into the war, and gives the American contribution its full due. But the book is quite free of the purely emotional and rhapsodical. It is to be hoped that it will soon be made available to American readers in translation.