EDITED BY 



DIONYSIUS LARDNJER, D.C.L., 



Formerly Professor of Natural Philosophy and Astronomy in University College, London. 

 ILLUSTRATED BY ENGRAVINGS ON WOOD. 



VOL. VIII. 



LONDON: 

 WALTON AND MABERLY, 



UPPER GOWER STREET, AND IVY LANE, PATERNOSTER ROW. 

 1855. 



