CRANIA HELVETICA. . 283 
Il.—HouHBERG TYPE. 
IV.—BEL-am TYPE. 
IV.—DISsENTIS TYPE. 
The basis upon which these different types are founded must be sought in 
the Crania Helvetica. Iwill only add that it is to the age of iron in Switzerland, 
i. e., to the five or six centuries which preceded the Christian era, the Sion type 
(I) is to be referred. ‘The Hohberg type (II) answers to the Roman period, or 
