JOURNAL OF THE CRIEJIICAL SOCIETY. C0NTAI N IN0 THE PAPERS READ BEFORE TIIE SOCIETY AND ABSTRACTS OF CHEXICAL PAPERS PUBLISHED IN OTHER JOUEtNdLS. a~rnmittes~f @ublicrtlair I?. A. ABEL,P.R.S. w. MARCET x.D. F.R.S. E. ATKISSOS,Ph.D. N. SrOPY-JIASKELYNE F.R.S. F.C.S. E. J UILLS D.Sc. C. L. BLOXAU Ph.D. F.R.R. H. DEBUS Fh.D. F.R.S. HVGOX~LJ~ER G. C FOSTER B.A. F.R.S. W. ODLING,KB F.R.S. M.D. W. H. PERKIN, MICHAELFOSTER F.R,S. D.C.L. F.R.S. H €3. ROSCOE, E. FRANKLAND Ph.D. F.R.S. Ph,D. F.R.S. W. J. EUSSELL, J. H. GILBERT Ph.D. Ph.D. F.R.S. A. VOELCKER, J. E. GLADSTONE Ph.D. F.R.S. A. VEENON M.A. F.R.S. A. W.WiLLIatsoN PG.D. F.R.S. HARCOURT 6;bifar HENRYWATTS,B.A. F.R.S. D.Sc. WILLIAXVALENTIN. WALTERFLIGHT GILL. ROBEKr ~~ARISGIOS. 0.EAUGHTOX CHARLES WATTS,D.Sc. GEAHAJI,D.Sc. JOHN EIDY WImuJf s, C.E. GROVES. REV.STEP NEW SERIES Vol. IX. (Entire Series Vol. xxiv,) LONDON VAN TOORST 1 PATERNOSTER ROW. 1871 LONDON ! HAWISON AND aorps PRINTERS IN ORDINARY TO IIER NAJESTP GT MARTIN’U LANIC