242 FISHBERG 



relation to the proportion found among the Jewesses measured 

 at home and no definite conclusions can be drawn in this respect 

 as to any form of social selection being at work. 



When compared with the non-Jewish women of the coun- 

 tries in which these Jewesses have lived, it is found also that 

 they do not follow the rule observed in men. They are not 

 more dolichocephalic in countries where the indigenous women 

 are so, nor are they more dolichocephalic in other places, as 

 can be seen from Table XXXIV. The averages are the same 

 as those in the non-Jewish women, but the distribution of the 

 various classes of headform does not correspond to that of the 

 Gentiles. Possibly this is due to the hmited number of observa- 

 tions on Jew^esses, or there is some other reason, which is not 

 apparent to the present writer. 



The Horizontal Circumference of the Head. 



The average horizontal circumference of the head of 1,528 

 Jews was 55.55 cm. (twenty- two inches). The range of ex- 

 treme individual variation was rather small. With a maximum 

 of 64.3 cm., and a minimum of 48.2 cm., the variation extended 

 over only 16. i cm., or 29 percent of the average. This is much 

 smaller than that which has been found for the stature of the Jews, 

 the length and width of the head, etc. The accompanying table 

 gives in detail the number and percentage of individuals with a 

 given size of the head, at intervals of five millimeters. It will be 

 observed that while the maximum number of individuals (12.82 

 percent) had heads corresponding to the average, 55.55 cm., 

 still the frequency of occurrence on both sides of the median 

 does not progressively get smaller. A curve drawn from these 

 figures does not run as smooth a course as we have observed to 

 be the case with other measurements of the head of the Jews. 

 This can be explained, first, because the chances of error in 

 observation are very great while taking measurements of the 

 horizontal circumference of the head with the tape, much greater 

 than when straight lines are measured with the calipers. This 

 condition has influenced the present writer to such an extent 

 that he has discarded the measurements of the horizontal cir- 



