AN ELEMENTARY INTRODUCTION TO MINERALOGY, BY THE LATE WILLIAM PHILLIPS. JSbtu (EJtiiinii, WITH EXTENSIVE ALTERATIONS AND ADDITIONS, BY II. J. BROOKE, F.R.S. F.G.S. AND W. II. MILLER, M.A. F.R.S. F.G.S. PROFESSOR OF MINERALOGY IS THE UNIVERSITY OF CAMBRIDGE. LONDON: LONGMAN, BROWN, GREEN, AND LONGMANS; SIMPKIN, MARSHALL, AND CO.; F. AND J. RIVINGTON ; WHITTAKER AND CO.; TEGG AND CO.; AND D. BOOUE. 1852. 0