54 



Proceedings of the Royal Irish Academy. 



(e) Analysis of Statistical Tables. — A belief appears to prevail 

 that the people of Inishturk are darker haired and taller than the 

 people of Clare Island, and the observations taken in this survey 

 seem to indicate the correctness of this opinion. The differences 

 are shown in the following table : — 





Clare Island. 



Inishturk. 



Number observed, 



Cephalic Index, 



Altitudinal Index, 



Mean Stature, 



Proportion to Stature — Span, . . 



„ ,, „ Hand, . 



,, ,, ,, Forearm, . 

 Nigrescence Index, 



45 

 79-7 

 65-4 

 1693 



(Sft. 6|in.) 

 105-5 



11-2 



15-1 



31-6 



11 



77-9 

 62-2 



1716 



(sft. i\\n.) 

 106-4 



11-2 



15-2 



72-1 



Prom this table it will be seen that the Inishturk men are not 

 only taller, but they have also a longer head, as shown by the lower 

 cephalic index. The proportions borne to the stature by hands and 

 forearms being the same in both, and yet the span-stretch in the 

 mean of Inishturk being greater than that of the Clare Islanders, 

 seems to indicate either that the upper arms are longer, or, what 

 seems more likely, from the appearance of the men, that they are 

 broader across the shoulders. Five out of the nine instances of 

 Darwinian tubercle observed were in Inishturk men. 



3. ViTAi. Statistics (Geneeal and Economic). 



(a) Population, — The population of these islands, like that of all 

 the others on the west coast, and indeed like that of Ireland in 

 general, is steadily decreasing. The cause of this decrease has been 

 the usual one, emigration. The population of the two islands was, 

 in 1891, 702. In 1831 it was 1616. 



Between the years 1851 and 1871 the population of Clare Island 

 had decreased from 745 to 494, and that of Inishturk from 202 to 

 127. Since then the population of Clare Island has fluctuated, 



