JOURNAL OF GENETICS, VOL. IV. NO. 1 



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1-3 Lpfthaiidediiess trace<able five generations in the direct line. (Three histories.) 



8—16 Lefthaudedness appearing in parent and child. (Korty-eight histories.) 



23—36 Lefthandedness appearing in great-grandparent and child. (Fourteen histories.) 



41—56 Lefthandedness appearing in grandparent, parent and child. (Sixteen histories.) 



* The numeral gives the order in the fraternity ; the total number of indi>i 



