NATURE 



[Maj' 2, 1872 



V..-^ ^^* ^-^ ^-^' ^ ^ V_/ (_J ^„^ 



Celts from DoLMEN-^rou^IDS in Brittany. 



Types of celts adopted by the Society Polymathiqne du Morbi/iatt^ aud alluded to in the above t.ible 



Dolmen-mounds of Brittany and their Interior Structures 



The Citadel, Plymouth 



S. P. Oliver 



