THE 



MICROGRAPHIC DICTIONARY; 



A GUIDE TO THE EXAMINATION AND INVESTIGATION 



OF THE 



STRUCTURE AND NATURE 



OF 



MICROSCOPIC OBJECTS. 



BY 



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



MEMBER OF THE ROYAL COLLEGE OF PHYSICIANS ; 

 AND 



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 OF GEOLOGY, SiAFF COLLEGE, SANDHURST. 



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

 CONTAINING FIGURES OF 2680 OBJECTS. 



VOL. II. PLATES. 



LONDON : 



JOHN VAN VOORST, PATERNOSTER ROW. 



MDCCCLXXXIII. 



