408 SCIENCE PROGRESS. 



obtain in our own country. With us it is, as a rule, 

 the lower-class youth of the cities who are worst fed, and 

 their stature is below that of the same class in the rural 

 districts. 



The following table, for Karlsruhe, confirms almost 

 absolutely the one for Freiburg. 



Karlsruhe Conscripts. 



Mean of surrounding district 



Immigrants, born in the Duchy - 

 ,, born elsewhere 



Half-citizens (father country-born) 



Citizens (father city-born) - 



Do, native (father from another 



town) ----- 8o'2 184 149 



Both subject and father from an- 

 other town ... . 



Born in a town (father countryman) 



Born in country (father in town) - 



These facts may be put in another form, in which they 

 are perhaps still more striking. 



Karlsruhe. 

 of^Baden Immigrants. Half-cit s . Citizens. 

 Per cent, of indices 



below 80 (dolichoid) 12*2 i4 - Q 25-9 33 # 3 



Per cent, of indices of 



85 and above - - 38*2 33-3 18-4 12*4 



We are now prepared to receive as at least highly 

 probable the " law of Ammon ". " That in regions where 

 the brachykephalic type prevails it tends to become localised 

 in the rural districts, while the dolichoid type becomes con- 

 centrated in the cities." But if it need confirmation, this 

 may be derived in abundance from the observations of 

 Collignon, but more especially from those of De Laponge. 

 Thus in a series of 108 immigrants into the Herault, the 

 latter found an average breadth-index of 82*34, whereas the 

 average calculated from the known indices of the several 

 departments of origin would have been 83*40. Again, in 

 four little towns of the Herault the urbans (issue of parents 



