Morley, John. _Diderot and the Encyclopædists._ 2 vols. London: 1923. (A suggestive survey, parts of which have been superseded by more recent studies.) Mornet, Daniel. _French Thought in the Eighteenth Century._ Tr. by L. M. Levin. New York: 1929. (Lucid and penetrating survey; suggestive notes on the influence of speculation motivated by science.) Mornet, Daniel. _Les origines intellectuelles de la Révolution française (1715-1787)._ Paris: 1933. (A brilliant work, concluding that without the extraordinary diffusion of radical ideas in all classes in France, the States-General in 1789 would not have adopted revolutionary measures. See C. Brinton's review, _American Historical Review_, XXXIX, 726-7, 1934.) Morse, W. N. "Lectures on Electricity in Colonial Times," _New England Quarterly_, VII, 364-74 (June, 1934). (Presents fourteen items on the vogue of electrical experiments, 1747-1765.) Mott, F. L. _A History of American Magazines, 1741-1850._ New York: 1930. Mullett, C. F. _Fundamental Law and the American Revolution, 1760-1776._ New York: 1933. (A highly important scholarly study, with excellent bibliography of relevant investigations of recent date. Supplements B. F. Wright.) Ornstein, Martha. _The Rôle of Scientific Societies in the Seventeenth Century._ New York: 1913. Reprinted, University of Chicago Press: 1928. (Shows their radical influence. See suggestive reviews in _American Historical Review_, XXXIV, 386-7, 1929; and _Times Literary Supplement_ [London], 679, Sept. 27, 1928.) Osgood, H. L. _The American Colonies in the Eighteenth Century._ 4 vols. New York: 1924-1925. (Standard work on political aspects.) Perkins, J. B. _France in the American Revolution._ Boston: 1911. (Includes able survey of Franklin's efforts in behalf of colonies.) Richardson, L. N. _A History of Early American Magazines, 1741-1789._ New York: 1931. (An encyclopedic survey indispensable to all students of the period. Enormously documented.) Robertson, J. M. _A Short History of Free Thought, Ancient and Modern._ 2 vols. London: 1915. (Third edition, revised and expanded. An important survey, if somewhat militantly partisan.) Roustan, Marius. _The Pioneers of the French Revolution._ Tr. by F. Whyte, with an Introduction by H. J. Laski. Boston: 1926. (Thesis: "The spirit of the _philosophes_ was the spirit of the Revolution." Highly readable, but inferior to parallel studies by Martin and Mornet in incisive analysis of patterns of ideas. Stresses picturesque social aspects.) Schapiro, J. S. _Condorcet and the Rise of Liberalism in France._ New York: 1934. (Condorcet is the "almost perfect expression of the pioneer liberalism of the period"; he is viewed as the "last of the encyclopedists and the most universal of all." A lucid scholarly study, although hardly superseding Alengry's _Condorcet_.)