O J o 

 THE MAINAED M. tiETCALF, 



MICROGRAPHIC DICTIONARY; 



A GUIDE TO THE EXAMINATION AND INVESTIGATION 



OF THE 



STRUCTURE AND NATURE 



OF 



MICROSCOPIC OBJECTS, 



BY 

 J. W. GEIFFITH, M.D. &c., 



MF.MBEE OF THl*; ROYAL COLLEGE OF PHYSICIANS ; 



ANU 



ARTHUR HENFREY, F.R.S., F.L.S., &c. 



PROFESSOR OF BOTANY IN KING's COLLEGE, LONDON. 



FO UR TH EDITION. 



EDITED BY 



J. W. GRIFFITH, M.D. &c., 



ASSISTED BY 



The Rev. M. J. BERKELEY, M.A., F.R.S., F.L.S., 



AND 



T. RUPERT JONES, F.R.S., F.G.S., 



LATE PROFESSOR OP GEOLOGY, STAFF COLLEGE, SANDHURST. 



ILLUSTRATED BY FIFTY-THREE PLATES AND EIGHT HUNDRED AND EIGHTEEN WOODCUTS 



CONTAINING FIGURES OF 2680 OBJECTS. 



VOL. I.— TEXT. 



LONDON: 

 JOHN VAN VOORST, PATERNOSTER ROW. 



MDCCCLXXXIII. 



