X PREFACE. 



and for much valuable assistance in other ways. My 

 thanks are due to Professor Steenstrup for many of 

 the figures by which the "Work is illustrated. Others, 

 through the kindness of Sir W. E. Wilde, Mr. Franks, 

 and Dr. Thurnam, have been placed at my disposal 

 by the Society of Antiquaries and the Eoyal Irish 

 Academy. To Professor Steenstrup, Dr. Keller, M. 

 Morlot, and Professor Eiitimeyer, I am indebted for 

 much information on the subject of their respective 

 investigations. Finally, Mr. Busk, Mr. Evans, and 

 Professor Tyndall, have had the great kindness to read 

 many of my proofs, and to them I am indebted for 

 various valuable suggestions. 



CHISELHURST, 



February, 1805. 



