Tl PREFACE. 



At first I only contemplated reprinting the papers 

 as they stood, but having, at the request of the 

 managers, delivered at the Eoyal Institution a short 

 course of lectures on the Antiquity of Man, it was 

 thought desirable to introduce the substance of these, 

 so as to give the work a more complete character. 



My object has been to elucidate, as far as possible, 

 the principles of pre-historic archeology ; laying spe- 

 cial stress upon the indications which it affords of the 

 condition of man in primeval times. The tumuli, or 

 burial mounds, the peat bogs of this and other coun- 

 tries, the Kjokkenmoddings or shell -mounds of 

 Denmark, the Lake-habitations of Switzerland, the 

 bone-caves, and the river-drift gravels, are here our 

 principal sources of information. 



In order to qualify myself, as far as possible, for 

 the task which I have undertaken, I have visited not 

 only our three great museums in London, Dublin, 

 and Edinburgh, but also many on the Continent ; as, 

 for instance, those at Copenhagen, Stockholm, Lund, 

 Flensburg, Aarhuus, Lausanne, Basle, Berne, Zurich, 

 Tverdon, Paris, Abbeville, etc., besides many private 

 collections of great interest, of which I may particu- 

 larly specify those of M. Boucher de Perthes, Messrs. 

 Christy, Evans, Bateman, Forel, Schwab, Troyon, Gil- 



