Effect of Chct)ucals on Groivth 



507 



TABLE XIV. 



The osmotic pressures in atmospheres of di^erent strengths of NaCl at 20° C. dissolved in distilled water 

 and in hay infusion. The osmotic pressure of hay infusion is assumed to he .441 atmospheres. 



TABLE XV. 



Comparative measurements of in microns Paramecia in -?L WaCl in distilled water, and in .OJQ N sugar 



in distilled water. 



TABLE XVI. 



Table showing di^erent effects of ^^NaCl upon adult and young Paramecia. 



' The data for osmotic pressure given here have been compiled from the formulae given on pages 

 41-44 in "The R61e of Diffusion and Osmotic Pressure in Plants," by B. E. Livingston, Chicago, 1903 



