EXPERIMENT STATION BULLETINS. 



529 



above. The effect of the diameter in proportion to its length is worthy of 

 consideration. 



DispJacing liquid — Some otlier liqnid miglit be fonnd that will pen- 

 etrate all soils and still have no action upon the solution chemically or 

 physically. 



Packing — Some method needs to be devised that will give a more 

 uniform packing so that the displacing liquid will give better results. 



APPENDIX. 



Table of Osmotic pressures in atmospheres for depression of the freezing point to 2.999°C. Harris 



and Gortner)!. 



'Harris and Gortner. American Journal of Botany, I, 75-78. 



ACKNOWLEDGMENTS. 



The autlior wishes to tliank Prof. Ward Giltner for his kindly sug- 

 gestions in carrying out this work and in preparing the manuscript for 

 this bulletin. He is also grateful to Messrs. R. J. Trebilcock, M. I. 

 Wolkoff, P. E. Karraker, G. Patch, and O. M. Gruzit for many of the 

 determinations used in this article; to Mr. Gruzit also for the transla- 

 tion of the Russian articles used in the preparation of tliis bulletin and 

 to Mr. L. J. Krakover for drawing of Fig. 1. 

 67 



