JACQUES LOEB 



707 



sures from some of our older experiments on the osmotic pressure of 

 crystalline egg albumin (containing 1 gm. of isoelectric albumin in 

 100 cc. solution). Fig. 5 gives a comparison of the curves for the 



pHl.a 2.0 2.2 2.4 2.6 lb 3.0 3.2 3.4 35 3.8 40 42 44 4.6 45 



Fig. 4. Comparison of curves for observed and calculated values of osmotic 

 pressure of solutions of 1 per cent gelatin sulfate. 



pH 1.6 Ifl 20 2.2 24 2.6 Zb 3.0 3.2 34 3.6 3.6 4D 42 44 4.6 



Fig. 5. Comparison of curves for observed and calculated values of osmotic 

 pressure of solutions of 1 per cent crystalline egg albumin chloride. 



observed and calculated osmotic pressures of 1 per cent albumin 

 chloride and Fig. 6 the curves for observed and calculated osmotic 

 pressures of 1 per cent albumin sulfate. In Fig. 6 appears the con- 

 stant difference between the curves for observed and calculated 



