Thin vitrified layers of unfixed, unstained and unsupported virus suspensions can be prepared for observation by cryo-electron microscopy in easily controlled conditions. The viral particles appear free from the kind of damage caused by dehydration, freezing or adsorption to a support that is encountered in preparing biological samples for conventional electron microscopy. Cryo-electron microscopy of vitrified specimens offers possibilities for high resolution observations that compare favourably with any other electron microscopical method.

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'In a certain sense history is the sacred book of a nation, the main, the indispensable book, the mirror of its existence and activity, the table of revelations and rules, the ancestors' bequest to posterity, the supplement and explanation of the present, and the example for the future.' 1 This excerpt from the foreword to Nikolai M. Karamzin's Istoriia gosudarstva rossiiskogo (History of the Russian State; 1818-26) serves to highlight an important aspect of the two books under review. In both cases, the examples provided by history, both of Russia itself and those drawn from Classical literature, were closely examined by 18th-century Russian writers, scholars, and political actors. The authors of the two books under review demonstrate that the invocation of the past, often in an idealized or mythologized form, was of chief concern to these individuals for a number of reasons. Naturally, a comparison or analogy with the past could be used in support or critique of their contemporary situation in Russia, but these two books also highlight the importance of the 18th-century context in understanding the interests and intentions of their authors.

The surge of interest in the study and writing of history during the Enlightenment coincided with a period of considerable change and upheaval in Russia, typified by the impact and legacy of the reforms of Peter I. Russia's 'European reorientation' (or 'Europeanization'), culturally and intellectually, raised significant questions about its identity and role in the future. Historical models provided an important source for those seeking to re-situate Russia in the wider European order, in terms of its right to belong, its pattern of development, and its vocabulary of power. [End Page 176] Both works form part of the wider and ongoing re-evaluation of the literary output and intellectual climate of the 18th century in Russia, particularly during the reign of Catherine II. The ultimate fighter. Among Russian scholars, this development has been characterized by a move away from the ideological concerns of the Soviet era, namely that these 'enlighteners' represented a progressive, bourgeois opposition to the autocracy.

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2 Instead, 18th-century studies in Russia began to incorporate the insights provided by the semiotic methodology pioneered by Iurii M. Lotman and Boris A. Uspenskii from the 1970s onward. 3 This approach emphasized the study of areas that had been previously undervalued or overlooked by many Soviet scholars, such as the symbolic importance of language and the continuing influence of religion on 18th-century Russian culture. 4 This emerging direction in Russian scholarship was acknowledged and complemented by contemporary work on the 18th century produced in both Europe and America.