39° 



BOTANICAL GAZETTE 



[may 



7. The paper considers critically the methods and interpreta- 

 tion of the similar work of Brown and Worley on Hardeum 

 seeds. 



University of Kentucky 

 Lexington, Ky. 



LITERATURE CITED 



1. Brown, A. J., and Worley, F. P., The influence of temperature on the 

 absorption of water by seeds of Hardeum vulgare in relation to the tempera- 

 ture coefficient of chemical change. Proc. Roy. Soc. London B 85:546- 



553- 1912 



Denny, I 

 Gaz. 6 a : 1 



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Semipermeability 



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1913. 



4 



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1916. 



5 



-, Physiological isolation of types in the genus Xanthiutn. Bot. 



Gaz. 59:474-483. 1915. 



