370 ROBERT G. GREEN 



method. The apparatus consists of a dropping pipette, a deH- 

 cate torsion balance and an adjustable scale upon which the 

 surface tension is read directly in dynes per centimeter. 



REFERENCES 



Larson, W. P: 1921 Proc. Exp. Biol, and Med., 19, 62-63. 

 Morgan-, J. Livixgstox: 1911 Jour. Amer. Chem. Soc, 33, 349-362. 



