278 



Proceedings of the Royal Irish Academy. 



Mercantile Men (13 persons). 





Mean. 



Mininium. 



Maximum. 



Cephalic index, 



78-2 



75-0.. 



81-5 



Altitudinal index, 



65-4 



61-9 



71-1 



Stature, 



. 1715 



1593 



1831 m.m. 



Weight, 



168-8 



120-0 



221-0 lbs. 



Grasp of right hand, . 



91-5 



69-0 



118-0 ,, 



, , left hand, 



84-3 



58-0 



111-0 „ 



Vital capacity, 



198 



165 



286 cubic in. 



Hand to Stature, 



10-9 



10-0 



11-5 



Forearm ,, 



14-6 



13-8 



15-7 



Span , , 



103-4 



100-8 



107-0 



Height sitting, 



53-6 



52-1 



55-4 



Grasp of left hand greater than that of right in 1 case. 

 Grasp of left hand equal to that of right in 1 case. 



Students (Class A), Sonourmen (32 persons). 





Mean. Minimum. 



Maximum. 



Cephalic index. 



78-7 73-7 



84-9 



Altitudinal index. 



64-4 61-7 



76-5 (?) 



Head length, 



196 186 ■' 



206 m.m. 



, , breadth. 



153 140 



164 „ 



„ height. 



131 124 



150 (?) m.m. 



Stature, 



, 1745 1653 



1841 m.m. 



Weight, 



152-3 129-0 



188-0 lbs. 



Grasp of right hand, . 



102-4 76-0- • 



130-0 „ 



,, left band. 



98-5 67-0 



120-0 ,, 



. Yital capacity. 



220 180 



285 cubic in. 



Distance at which standard type could be read *■: — 







Mean. Minimum. 



Maximum. 



Right eye. 



60-6 0-0 



96-0 cm. 



Left eye, 



56-9 8-0 



96-0 ,, 



* 9-7 per cent, were unable to read standard type at 45 cm. ; 51-6 per cent, 

 could read it at distances between 45 and 65 cm. ; and 38-7 per cent, could read it 

 at from 66 to 96 cm. The standard type was that adopted for use by Mr. Galton 

 (brilliant). 



