1917. From the Preface: I have called these lectures, given during the winter of 1916-17 in the Lowell Institute course in Boston, The Substance of Gothic, because in them an effort is made, though briefly and superficially, to deal with the development of Christian architecture from Charlemagne to Henry VIII, rather in relation to its substance than its accidents; to consider it as a definite and growing organism and as the exact and unescapable exponent of a system of life and thought antipodal to that of the modernism that began its final dissolution at the beginning of August A.D. 1914, rather than in the light of its accidents of form and ornament and details of structural design...