SiGERSON — On Dextral Pre-eminence. 



51 



ILLUSTRATIVE CASES 



Showing (^ivhere general strength reduced) the relative grasp-power of 

 hands, as tested hy Charriere' s Dynamometer, (A.) when first observed, . 

 and (B.) when health regained. 



In Class I. The right hand is somewhat \ Finally the right 

 When first observed I predominant still. hand becomes 



' ' ,, II. Both are almost equal. i distinctly pre- 



,, III. Right hand is the weaker. / dominant. 



Class I. 



Class II. 



Class III. 





Right. 



Left. 



Might. 



Left. 



Rev. L. :— 



Eight. 

 lbs. 



Left. 

 lbs. 





lbs. 



lbs. 



Mr. N". : — 



lbs. 



lbs. 



A. 

 B 



105 

 155 



120 

 150 



A. 



110 . 



83 



A. 100 . 



98 



Rev. B. :— 







B. 



205 . 



150 



B. 145 . 



120 



A. 

 B. 



83 

 130 



96 

 125 









Mr. M. :— 





Mrs. M. :— 

 A. 



50 



65 



A. 



150 . 



145 



A. 115 . 



112 



B. 



104 



106 



B. 



165 . 



150 



B. 135 . 



110 



Mr. M. :— 

 A. 



124 



135 









Miss V. : — 





B. 

 Mr. M'D. : 



152 



140 



A. 



70 . 



50 



A. 80 . 



80-6 



A. 



65 



105 



B. 



150 . 



95 



95 . 

 B. 100 . 



85 

 95 



B. 



Rev. B. :— 

 A. 



130 

 120 



116 

 122 









Rev. Mr. O'D. : — 





B. 



Mr. C. :— 



203 . 



147 



A. 



115 . 



112 



A. 100 . 



100 



A. 



146 . 



152 



B. 



140 . 



125 



B, 145 . 

 Mr. K. :— 



125 



B. 

 Mr. P. :— 



207 . 



95 . 

 145 . 



156 



100 

 145 



A. 



50 . 



30 



A. 125 . 



122 



Mr. M'C. :- 



_ 





B. 



145 . 



95 



B. 150 . 



143 



A. 

 B. 



125 . 

 145 . 

 150 . 



135 

 140 

 144 



