Alsted (1588-1638), a professor of theology and philosphy, wrote mostly on theological subjects, but his "ultimate fame rests upon his conception of the encyclopedia as a universal system of knowledge. He believed in a fundamental unity of divine and secular knowledge, the nature of which unity could be displayed by the use of logica-mnemonica, the art of directing the mind and perfecting the memory. Also prominent was his logical analysis of the nature and divisions of the parts of knowledge, or technologia, which provided the basis for the organization of his encyclopedia. These systematic writings had an immediate but ephemeral appeal in institutions of higher education, his Encyclopaedia being to such students as Cotton Mather the "North-West Passage to all the sciences." More important, they influenced the educational theories of Comenius, as well as his pansophia, and the encyclopedic philosophies of Leibniz and Morhof." (DSB) Without A2 in volume III, but text appears continuous.