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PROCEEDINGS OF THE AMERICAN ACADEMY, 



Table II. gives the means and coefficients of variability which are 

 directly comparable. In every case, with the exception of the propodite 

 of the small chela, the means for the Rights are larger than those for the 

 Lefts ; the coethcieuts of variability are without exception greater for 

 the Lefts. In other words, the right-handed individuals are the larger 

 and the less variable. 



TABLE III. 



Right- and Left-Handedness. 



TABLE IV. 

 Right- and Left-Handedness. 



