A FURTHER CONTRIBUTION TO THE STUDY OF 

 RIGHT- AND LEFT-HANDEDNESS. 



By R. H. COMPTON. 



r 



In a paper presented to the Cambridge Philosophical Society in 

 June 1910* I discussed the phenomena connected with the occurrence 

 of two stereo-isomeric forms of seedling in two-rowed Barley (Hordeum 

 distichum); the difference between them being shown in the mode of 

 folding of the first leaf above the coleoptile (Diagram 1). The two 



L£/\f 



ri 



_.COL£OP- 



R.H »-•" 



Diagram 1. 



kinds of fold were called respectively right- and left-handed, the con- 

 vention adopted being explained in the introduction to the paper. 



1 B. H. Compton, " On Bight- and Left-Handedness in Barley," Proe. Cambridge PkiL 

 Soc. XV. p. 495, 1910. 



