Produced by Chris Curnow and the Online Distributed Proofreading Team at http://www.pgdp.net THE AUGUSTAN REPRINT SOCIETY AN EXPLANATORY DISCOURSE BY TAN CHET-QUA, of QUANG-CHEW-FU, Gent. SIR WILLIAM CHAMBERS (1773) _Introduction by_ RICHARD E. QUAINTANCE, JR. PUBLICATION NUMBER _191_ WILLIAM ANDREWS CLARK MEMORIAL LIBRARY UNIVERSITY OF CALIFORNIA, LOS ANGELES _1978_ GENERAL EDITOR David Stuart Rodes, University of California, Los Angeles EDITORS Charles L. Batten, University of California, Los Angeles William E. Conway, William Andrews Clark Memorial Library George Robert Guffey, University of California, Los Angeles Maximillian E. Novak, University of California, Los Angeles ADVISORY EDITORS James L. Clifford, Columbia University Ralph Cohen, University of Virginia Vinton A. Dearing, University of California, Los Angeles Arthur Friedman, University of Chicago Louis A. Landa, Princeton University Earl Miner, Princeton University Samuel H. Monk, University of Minnesota Everett T. Moore, University of California, Los Angeles Lawrence Clark Powell, William Andrews Clark Memorial Library James Sutherland, University College, London H. T. Swedenberg, Jr., University of California, Los Angeles Robert Vosper, William Andrews Clark Memorial Library CORRESPONDING SECRETARY Beverly J. Onley, William Andrews Clark Memorial Library EDITORIAL ASSISTANT Frances M. Reed, University of California, Los Angeles INTRODUCTION